Classification
000 - Computer science, information & general works
20
100 - Philosophy & psychology
4
140 - Specific philosophical schools
8
170 - Ethics
2
304 - Factors affecting social behavior
3
320 - Political science
8
330 - Economics
13
333 - Economics of land & energy
18
340 - Law
5
363 - Other social problems & services
12
370 - Education
2
380 - Commerce, communications & transportation
14
410 - Linguistics
1
500 - Natural sciences & mathematics
9
530 - Physics
2
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
3
576 - Genetics & evolution
580 - Plants (Botany)
5
581 - Specific topics in natural history
2
600 - Technology
21
610 - Medicine & health
5
612 - Human physiology
1
620 - Engineering & allied operations
13
630 - Agriculture & related technologies
3
658 - General management
4
700 - The arts; fine & decorative arts
24
720 - Architecture
5
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1
900 - History & geography
13
920 - Biography, genealogy & insignia
1