Classification
000 - Computer science, information & general works
17
100 - Philosophy & psychology
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
14
300 - Social sciences
2
304 - Factors affecting social behavior
1
330 - Economics
21
333 - Economics of land & energy
34
340 - Law
3
361 - Social problems & social welfare in general
1
363 - Other social problems & services
21
370 - Education
4
380 - Commerce, communications & transportation
9
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
9
530 - Physics
3
540 - Chemistry & allied sciences
9
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
5
576 - Genetics & evolution
5
580 - Plants (Botany)
15
581 - Specific topics in natural history
2
600 - Technology
610 - Medicine & health
16
612 - Human physiology
2
620 - Engineering & allied operations
41
630 - Agriculture & related technologies
3
658 - General management
1
700 - The arts; fine & decorative arts
41
720 - Architecture
2
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
3
900 - History & geography
31