Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
4
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
15
170 - Ethics
2
200 - Religion
1
300 - Social sciences
4
304 - Factors affecting social behavior
5
320 - Political science
17
330 - Economics
40
333 - Economics of land & energy
60
340 - Law
7
361 - Social problems & social welfare in general
2
363 - Other social problems & services
370 - Education
13
380 - Commerce, communications & transportation
31
400 - Language
6
410 - Linguistics
1
414 - Phonology & phonetics
4
500 - Natural sciences & mathematics
7
530 - Physics
3
540 - Chemistry & allied sciences
6
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
18
576 - Genetics & evolution
9
580 - Plants (Botany)
24
581 - Specific topics in natural history
7
600 - Technology
610 - Medicine & health
26
612 - Human physiology
2
620 - Engineering & allied operations
630 - Agriculture & related technologies
41
657 - Accounting
1
658 - General management
10
700 - The arts; fine & decorative arts
59
720 - Architecture
14
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
5
900 - History & geography
54