SUBJECT
Books
Classification
Classification, Library of Congress
48
History
24
Law
18
Literature
14
Social sciences
12
Cataloging
10
Science
10
Philology
8
Religion
7
Music
5
Philosophy
5
Political science
5
Technology
5
Africa
4
Agriculture
4
Asia
4
Classical philology
4
Education
4
Geography
4
Indexing
4
Languages, Modern
4
Medicine
4
Psychology
4
American literature
3
Anthropology
3
Bibliography
3
Chinese literature
3
Economics
3
English literature
3
French literature
3
General works
3
German literature
3
Indo-Iranian philology
3
Information storage and retrieval systems
3
Italian literature
3
Language and languages
3
Languages
3
Library science
3
Military science
3
Oriental philology
3
Portuguese literature
3
Sociology
3
Spanish literature
3
Subject headings
3
Antarctica
2
Art
2
Australia
2
Bibliographers
2
plus ...