Classification
000 - Computer science, information & general works
304 - Factors affecting social behavior
700 - The arts; fine & decorative arts
330 - Economics
5
333 - Economics of land & energy
5
320 - Political science
4
363 - Other social problems & services
4
610 - Medicine & health
4
630 - Agriculture & related technologies
4
140 - Specific philosophical schools
3
380 - Commerce, communications & transportation
3
551 - Geology, hydrology & meteorology
3
581 - Specific topics in natural history
3
361 - Social problems & social welfare in general
2
576 - Genetics & evolution
2
370 - Education
1
414 - Phonology & phonetics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
600 - Technology
1