Classification
000 - Computer science, information & general works
53
100 - Philosophy & psychology
3
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
9
300 - Social sciences
4
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
4
320 - Political science
11
330 - Economics
24
333 - Economics of land & energy
37
340 - Law
4
361 - Social problems & social welfare in general
2
363 - Other social problems & services
49
370 - Education
8
380 - Commerce, communications & transportation
15
400 - Language
3
414 - Phonology & phonetics
9
500 - Natural sciences & mathematics
8
520 - Astronomy & allied sciences
1
530 - Physics
8
540 - Chemistry & allied sciences
551 - Geology, hydrology & meteorology
14
576 - Genetics & evolution
7
580 - Plants (Botany)
16
581 - Specific topics in natural history
10
600 - Technology
45
610 - Medicine & health
39
612 - Human physiology
1
615 - Pharmacology & therapeutics
3
620 - Engineering & allied operations
45
630 - Agriculture & related technologies
17
658 - General management
3
700 - The arts; fine & decorative arts
43
720 - Architecture
2
800 - Literature & rhetoric
1
900 - History & geography
17