Classification
000 - Computer science, information & general works
600 - Technology
700 - The arts; fine & decorative arts
179
330 - Economics
138
333 - Economics of land & energy
137
620 - Engineering & allied operations
126
363 - Other social problems & services
71
380 - Commerce, communications & transportation
69
610 - Medicine & health
62
630 - Agriculture & related technologies
58
576 - Genetics & evolution
55
900 - History & geography
54
140 - Specific philosophical schools
52
320 - Political science
39
580 - Plants (Botany)
36
370 - Education
26
400 - Language
26
500 - Natural sciences & mathematics
26
658 - General management
26
720 - Architecture
26
551 - Geology, hydrology & meteorology
25
800 - Literature & rhetoric
17
340 - Law
16
300 - Social sciences
13
540 - Chemistry & allied sciences
13
530 - Physics
11
581 - Specific topics in natural history
11
100 - Philosophy & psychology
9
657 - Accounting
8
780 - Music
7
170 - Ethics
6
410 - Linguistics
6
361 - Social problems & social welfare in general
5
414 - Phonology & phonetics
5
304 - Factors affecting social behavior
4
350 - Public administration & military science
3
615 - Pharmacology & therapeutics
3
612 - Human physiology
2
770 - Photography, photographs & computer art
2
160 - Logic
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
520 - Astronomy & allied sciences
1
791 - Public performances
1