Library of Congress U.S. Classification Outline |
| Cataloging Tools, Documentation |
| General, Descriptive Cataloging |
| Catalogs, Authority Records |
| GEOGRAPHY. ANTHROPOLOGY. RECREATION |
| WORLD HISTORY AND HISTORY OF EUROPE, ASIA, AFRICA, AUSTRALIA, NEW ZEALAND, ETC. |
| AUXILIARY SCIENCES OF HISTORY |
| PHILOSOPHY. PSYCHOLOGY. RELIGION |
| |