Classification
363 - Other social problems & services
000 - Computer science, information & general works
46
333 - Economics of land & energy
46
600 - Technology
43
700 - The arts; fine & decorative arts
40
330 - Economics
37
610 - Medicine & health
37
900 - History & geography
32
620 - Engineering & allied operations
30
370 - Education
28
380 - Commerce, communications & transportation
27
140 - Specific philosophical schools
21
551 - Geology, hydrology & meteorology
21
320 - Political science
19
630 - Agriculture & related technologies
15
720 - Architecture
14
580 - Plants (Botany)
13
658 - General management
11
100 - Philosophy & psychology
9
800 - Literature & rhetoric
7
304 - Factors affecting social behavior
6
581 - Specific topics in natural history
6
340 - Law
5
576 - Genetics & evolution
5
400 - Language
4
500 - Natural sciences & mathematics
4
540 - Chemistry & allied sciences
4
612 - Human physiology
3
780 - Music
3
170 - Ethics
2
300 - Social sciences
2
361 - Social problems & social welfare in general
2
410 - Linguistics
2
414 - Phonology & phonetics
2
615 - Pharmacology & therapeutics
2
160 - Logic
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
364 - Criminology
1
530 - Physics
1
550 - Earth sciences
1
770 - Photography, photographs & computer art
1