Classification
000 - Computer science, information & general works
67
100 - Philosophy & psychology
1
140 - Specific philosophical schools
25
300 - Social sciences
4
304 - Factors affecting social behavior
13
320 - Political science
4
330 - Economics
17
333 - Economics of land & energy
42
340 - Law
1
361 - Social problems & social welfare in general
3
363 - Other social problems & services
370 - Education
2
380 - Commerce, communications & transportation
21
414 - Phonology & phonetics
11
500 - Natural sciences & mathematics
6
520 - Astronomy & allied sciences
1
530 - Physics
1
540 - Chemistry & allied sciences
18
551 - Geology, hydrology & meteorology
9
576 - Genetics & evolution
15
580 - Plants (Botany)
46
581 - Specific topics in natural history
12
590 - Animals (Zoology)
2
600 - Technology
35
610 - Medicine & health
72
612 - Human physiology
9
615 - Pharmacology & therapeutics
6
620 - Engineering & allied operations
26
630 - Agriculture & related technologies
12
658 - General management
5
700 - The arts; fine & decorative arts
59
720 - Architecture
3
800 - Literature & rhetoric
3
900 - History & geography
10