Classification
363 - Other social problems & services
600 - Technology
620 - Engineering & allied operations
26
000 - Computer science, information & general works
22
333 - Economics of land & energy
22
700 - The arts; fine & decorative arts
21
900 - History & geography
20
330 - Economics
19
610 - Medicine & health
18
370 - Education
16
380 - Commerce, communications & transportation
16
140 - Specific philosophical schools
10
320 - Political science
10
630 - Agriculture & related technologies
10
551 - Geology, hydrology & meteorology
9
658 - General management
7
580 - Plants (Botany)
5
720 - Architecture
5
340 - Law
4
581 - Specific topics in natural history
4
100 - Philosophy & psychology
3
400 - Language
3
500 - Natural sciences & mathematics
3
576 - Genetics & evolution
3
304 - Factors affecting social behavior
2
410 - Linguistics
2
160 - Logic
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
364 - Criminology
1
530 - Physics
1
540 - Chemistry & allied sciences
1
615 - Pharmacology & therapeutics
1
770 - Photography, photographs & computer art
1
780 - Music
1
800 - Literature & rhetoric
1