Classification
000 - Computer science, information & general works
37
630 - Agriculture & related technologies
34
363 - Other social problems & services
31
580 - Plants (Botany)
31
700 - The arts; fine & decorative arts
30
330 - Economics
27
333 - Economics of land & energy
22
600 - Technology
22
551 - Geology, hydrology & meteorology
20
610 - Medicine & health
17
581 - Specific topics in natural history
16
320 - Political science
14
620 - Engineering & allied operations
13
900 - History & geography
13
380 - Commerce, communications & transportation
12
140 - Specific philosophical schools
8
800 - Literature & rhetoric
7
340 - Law
5
370 - Education
5
540 - Chemistry & allied sciences
4
720 - Architecture
4
612 - Human physiology
3
300 - Social sciences
2
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
2
400 - Language
2
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
2
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
615 - Pharmacology & therapeutics
1
650 - Management & auxiliary services
1
657 - Accounting
1
658 - General management
1
770 - Photography, photographs & computer art
1