Classification
610 - Medicine & health
65
700 - The arts; fine & decorative arts
42
000 - Computer science, information & general works
25
333 - Economics of land & energy
24
363 - Other social problems & services
22
140 - Specific philosophical schools
19
600 - Technology
16
540 - Chemistry & allied sciences
15
304 - Factors affecting social behavior
14
380 - Commerce, communications & transportation
11
580 - Plants (Botany)
8
500 - Natural sciences & mathematics
7
615 - Pharmacology & therapeutics
5
620 - Engineering & allied operations
5
330 - Economics
4
576 - Genetics & evolution
4
320 - Political science
3
414 - Phonology & phonetics
3
570 - Life sciences; biology
3
900 - History & geography
3
120 - Epistemology, causation & humankind
2
340 - Law
2
581 - Specific topics in natural history
2
612 - Human physiology
2
658 - General management
2
800 - Literature & rhetoric
2
361 - Social problems & social welfare in general
1
370 - Education
1
400 - Language
1
410 - Linguistics
1
530 - Physics
1