Classification
330 - Economics
702
320 - Political science
542
340 - Law
124
900 - History & geography
36
300 - Social sciences
29
380 - Commerce, communications & transportation
22
700 - The arts; fine & decorative arts
16
630 - Agriculture & related technologies
12
670 - Manufacturing
12
360 - Social problems & services; associations
11
620 - Engineering & allied operations
11
600 - Technology
8
580 - Plants (Botany)
7
820 - English & Old English literatures
6
333 - Economics of land & energy
5
660 - Chemical engineering
5
000 - Computer science, information & general works
4
363 - Other social problems & services
4
610 - Medicine & health
4
677 - Textiles
4
740 - Drawing & decorative arts
4
650 - Management & auxiliary services
3
581 - Specific topics in natural history
2
810 - American literature in English
2
020 - Library & information sciences
1
025 - Library operations
1
140 - Specific philosophical schools
1
250 - Christian orders & local church
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
370 - Education
1
390 - Customs, etiquette & folklore
1
398 - Folklore
1
542 - Techniques, equipment & materials
1
551 - Geology, hydrology & meteorology
1
615 - Pharmacology & therapeutics
1
658 - General management
1
676 - Pulp & paper technology
1
702 - Miscellany of fine & decorative arts
1
890 - Literatures of other languages
1
930 - History of ancient world to ca. 499
1