Classification
363 - Other social problems & services
83
700 - The arts; fine & decorative arts
83
000 - Computer science, information & general works
24
333 - Economics of land & energy
11
320 - Political science
10
900 - History & geography
9
330 - Economics
7
540 - Chemistry & allied sciences
7
551 - Geology, hydrology & meteorology
7
576 - Genetics & evolution
7
600 - Technology
7
370 - Education
5
380 - Commerce, communications & transportation
4
630 - Agriculture & related technologies
3
100 - Philosophy & psychology
2
300 - Social sciences
2
340 - Law
2
550 - Earth sciences
2
581 - Specific topics in natural history
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
720 - Architecture
2
800 - Literature & rhetoric
2
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
338 - Production
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
530 - Physics
1
580 - Plants (Botany)
1
612 - Human physiology
1
650 - Management & auxiliary services
1
658 - General management
1
770 - Photography, photographs & computer art
1