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Books and journals are arranged on our shelves according to the Library of Congress (LC) classification system. Each is assigned a unique call number based on its subject matter and other characteristics. Items on the same subject will often be grouped together.
In using a call number to locate a book on the shelf, consider each element in turn before moving on to the next segment.
These call numbers are arranged as they should appear on the shelves. In each case, the element shown in boldface distinguishes the number from the preceding one:
| Q 76 K26 |
QA 17 F75 |
QA 17.1 C98 |
TK 3 Z37 |
TK 29 M49 |
TK 29 M5 1997 |
TK 29 M5 2007 |
Each call number consists of several elements. For example::
TK
7881.6
M29
1993
The FIRST line, TK, is based on the broad subject of the book. Within Class T for technology, TK represents electrical engineering.
The SECOND line, 7881.6, defines the subject matter more finely. When looking for the book, read this as a whole number with a decimal component. In this example, TK7881.6 represents magnetic recording (a subdivision of TK— electrical engineering).
The THIRD line, M29, usually indicates author, but may also represent a further subject subdivision, geographic area, etc. There may also be a fourth line, formatted the same way. When looking for the book, read the numeric component as if it were preceded by a decimal point. In the example above, the numeric part of M29 should be read as ".29" (and the call number TK7881.6 M29 comes before TK7881.6 M4).
The YEAR of publication, such as 1993, may also be present. These file in chronological order and often indicate successive editions of a book. The call number may also have additional elements, such as volume numbers.
Primary sources can be found in a variety of library tools:
For specific search strategies, see the Library's Guide to Finding Historical Primary Sources
One of the most powerful ways to find primary sources in the Library is to use the names of people. An essential part of your background reading should be to note down names of people involved in your topics.
Names can be searched in the catalogs [Oskicat and Melvyl] in specialized ways: as authors or as subjects. Even people you do not consider authors in the conventional sense may be listed as authors, if:
When searching for primary sources, it's a good idea always to search those names as authors, as well as keywords. Works where the person is listed as an author will always be primary sources.
There are tens of thousands of historical primary sources in Oskicat. To narrow your searching to primary sources, try this.
The results should be a list of primary sources on your topic, each of which is a book in the Berkeley library.
These databases include primary sources.
Three important databases for research in History.
Use a database efficiently
Databases allow you to search for articles by subjects, words in the text, authors, and more. Use the UC e-links button to find the article in full text or to search Melvyl for the print copy or to request it from another library.
Searching principles:
Citation management tools help you manage your research, collect and cite sources, and create bibliographies in a variety of citation styles. Each one has its strengths and weaknesses, but any are easier than doing it by hand!
It's always good to double check the formatting -- sometimes the software doesn't get it quite right.
Using APA 6th? Purdue has produced this very handy quick guide. The fulltext of APA 6th is not available online, but we do have print copies in the EdPsych Library in reference and short term reserve at BF76.7 P83 2010If you've never used Zotero before, use the QuickStart Guide to get started.
Change your preferences if you want Zotero to
To use Zotero to find specific articles in our library's databases, set up the Open URL resolver with this link: http://ucelinks.cdlib.org:8888/sfx_local?
An in-depth discussion of the relative virtues of Endnote and Zotero,
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Research Advisory Service for Cal Undergraduates
Book a 30-minute appointment with a librarian who will help refine and focus research inquiries, identify useful online and print sources, and develop search strategies for humanities and social sciences topics (examples of research topics).
Schedule, view, edit or cancel your appointment online (CalNetID required)
This service is for Cal undergraduates only. Graduate students and faculty should contact the library liaison to their department or program for specialized reference consultations.
Other ways to get help: in person, by e-mail, using specialized chat services