Classification
330 - Economics
14
320 - Political science
12
900 - History & geography
9
333 - Economics of land & energy
5
551 - Geology, hydrology & meteorology
4
820 - English & Old English literatures
4
004 - Data processing & computer science
3
940 - History of Europe
3
650 - Management & auxiliary services
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
304 - Factors affecting social behavior
1
332 - Financial economics
1
351 - Public administration
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
398 - Folklore
1
404 - Special topics
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
600 - Technology
1
616 - Diseases
1
720 - Architecture
1
930 - History of ancient world to ca. 499
1