Classification
330 - Economics
141
630 - Agriculture & related technologies
71
320 - Political science
65
333 - Economics of land & energy
43
363 - Other social problems & services
42
000 - Computer science, information & general works
28
600 - Technology
28
700 - The arts; fine & decorative arts
28
610 - Medicine & health
23
340 - Law
21
551 - Geology, hydrology & meteorology
21
300 - Social sciences
19
580 - Plants (Botany)
19
900 - History & geography
18
620 - Engineering & allied operations
16
301 - Sociology & anthropology
13
820 - English & Old English literatures
13
304 - Factors affecting social behavior
10
370 - Education
10
140 - Specific philosophical schools
9
240 - Christian moral & devotional theology
9
581 - Specific topics in natural history
8
658 - General management
8
361 - Social problems & social welfare in general
6
170 - Ethics
5
380 - Commerce, communications & transportation
5
576 - Genetics & evolution
5
100 - Philosophy & psychology
4
414 - Phonology & phonetics
4
720 - Architecture
3
200 - Religion
2
338 - Production
2
530 - Physics
2
540 - Chemistry & allied sciences
2
800 - Literature & rhetoric
2
810 - American literature in English
2
010 - Bibliography
1
120 - Epistemology, causation & humankind
1
160 - Logic
1
250 - Christian orders & local church
1
331 - Labor economics
1
344 - Labor, social, education & cultural law
1
381 - Commerce
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
571 - Physiology & related subjects
1
615 - Pharmacology & therapeutics
1
657 - Accounting
1
930 - History of ancient world to ca. 499
1