Classification
320 - Political science
620 - Engineering & allied operations
600 - Technology
122
900 - History & geography
76
363 - Other social problems & services
68
330 - Economics
65
333 - Economics of land & energy
61
700 - The arts; fine & decorative arts
55
000 - Computer science, information & general works
36
380 - Commerce, communications & transportation
31
551 - Geology, hydrology & meteorology
31
630 - Agriculture & related technologies
31
300 - Social sciences
26
140 - Specific philosophical schools
22
100 - Philosophy & psychology
16
370 - Education
16
610 - Medicine & health
16
720 - Architecture
13
170 - Ethics
12
340 - Law
12
580 - Plants (Botany)
11
581 - Specific topics in natural history
11
576 - Genetics & evolution
10
500 - Natural sciences & mathematics
9
658 - General management
9
540 - Chemistry & allied sciences
8
400 - Language
7
530 - Physics
5
780 - Music
5
304 - Factors affecting social behavior
4
410 - Linguistics
4
200 - Religion
3
301 - Sociology & anthropology
3
350 - Public administration & military science
3
414 - Phonology & phonetics
3
657 - Accounting
3
800 - Literature & rhetoric
3
361 - Social problems & social welfare in general
2
550 - Earth sciences
2
120 - Epistemology, causation & humankind
1
360 - Social problems & services; associations
1
364 - Criminology
1
770 - Photography, photographs & computer art
1
791 - Public performances
1