Classification
333 - Economics of land & energy
610 - Medicine & health
14
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
6
380 - Commerce, communications & transportation
3
000 - Computer science, information & general works
2
304 - Factors affecting social behavior
2
370 - Education
2
612 - Human physiology
2
320 - Political science
1
330 - Economics
1
363 - Other social problems & services
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
615 - Pharmacology & therapeutics
1
658 - General management
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1