QH | Natural History (Biology) |
QH 366, 430 | Genetics & Genomes |
QH 450 | Developmental Biology |
QH 450 | Molecular Biology |
QP 551, QD 431 | Proteins |
QR | Microbiology |
R | Medicine |
For more details, visit the Library of Congress Classification Outline.
Library of Congress Subject Headings are the words and phrases that you will use to do a subject search in the catalog (as opposed to a keyword search). Although Geology is a broad Library of Congress Subject Heading, you will probably get better results if you are more specific. To search for the geology of a particular state, subject for Geology and the state (e.g. Geology--New Mexico). Be careful in your choice of words--some words and phrases that are natural to you will not be Library of Congress Subject Headings.
It is often helpful to do a keyword search on your topic first. Once you find an appropriate source, look at the subject headings and click the linked subject heading in the catalog.
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