Classification
140 - Specific philosophical schools
385
600 - Technology
700 - The arts; fine & decorative arts
192
620 - Engineering & allied operations
169
900 - History & geography
142
000 - Computer science, information & general works
129
610 - Medicine & health
119
333 - Economics of land & energy
113
363 - Other social problems & services
92
330 - Economics
84
380 - Commerce, communications & transportation
80
320 - Political science
50
370 - Education
37
580 - Plants (Botany)
36
300 - Social sciences
35
100 - Philosophy & psychology
31
630 - Agriculture & related technologies
29
576 - Genetics & evolution
28
400 - Language
27
340 - Law
26
170 - Ethics
24
551 - Geology, hydrology & meteorology
24
500 - Natural sciences & mathematics
21
658 - General management
20
720 - Architecture
20
800 - Literature & rhetoric
18
304 - Factors affecting social behavior
16
581 - Specific topics in natural history
16
410 - Linguistics
13
540 - Chemistry & allied sciences
13
301 - Sociology & anthropology
12
200 - Religion
10
361 - Social problems & social welfare in general
10
612 - Human physiology
10
530 - Physics
9
780 - Music
8
120 - Epistemology, causation & humankind
5
414 - Phonology & phonetics
5
615 - Pharmacology & therapeutics
4
160 - Logic
2
364 - Criminology
2
657 - Accounting
2
297 - Islam, Babism & Bahai Faith
1
336 - Public finance
1
350 - Public administration & military science
1
770 - Photography, photographs & computer art
1