Classification
320 - Political science
6
900 - History & geography
6
820 - English & Old English literatures
5
577 - Ecology
4
300 - Social sciences
3
330 - Economics
3
810 - American literature in English
3
230 - Christianity & Christian theology
2
333 - Economics of land & energy
2
370 - Education
2
500 - Natural sciences & mathematics
2
620 - Engineering & allied operations
2
624 - Civil engineering
2
936 - Europe north & west of Italy to ca. 499
2
950 - History of Asia; Far East
2
004 - Data processing & computer science
1
005 - Computer programming, programs & data
1
010 - Bibliography
1
170 - Ethics
1
200 - Religion
1
304 - Factors affecting social behavior
1
305 - Social groups
1
327 - International relations
1
340 - Law
1
341 - Law of nations
1
374 - Adult education
1
381 - Commerce
1
400 - Language
1
507 - Education, research & related topics
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
590 - Animals (Zoology)
1
592 - Invertebrates
1
617 - Surgery & related medical specialties
1
658 - General management
1
670 - Manufacturing
1
780 - Music
1
909 - World history
1
910 - Geography & travel
1
930 - History of ancient world to ca. 499
1