Classification
363 - Other social problems & services
581 - Specific topics in natural history
610 - Medicine & health
000 - Computer science, information & general works
12
580 - Plants (Botany)
10
551 - Geology, hydrology & meteorology
9
333 - Economics of land & energy
8
700 - The arts; fine & decorative arts
8
620 - Engineering & allied operations
6
140 - Specific philosophical schools
4
300 - Social sciences
4
380 - Commerce, communications & transportation
4
500 - Natural sciences & mathematics
4
540 - Chemistry & allied sciences
4
576 - Genetics & evolution
4
600 - Technology
4
414 - Phonology & phonetics
3
612 - Human physiology
3
630 - Agriculture & related technologies
3
900 - History & geography
3
100 - Philosophy & psychology
2
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
1
330 - Economics
1
364 - Criminology
1
520 - Astronomy & allied sciences
1
530 - Physics
1
800 - Literature & rhetoric
1