Classification
000 - Computer science, information & general works
43
100 - Philosophy & psychology
2
140 - Specific philosophical schools
9
170 - Ethics
2
300 - Social sciences
2
304 - Factors affecting social behavior
1
320 - Political science
3
330 - Economics
26
333 - Economics of land & energy
37
336 - Public finance
1
340 - Law
7
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
24
370 - Education
2
380 - Commerce, communications & transportation
12
400 - Language
1
410 - Linguistics
1
414 - Phonology & phonetics
4
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
2
551 - Geology, hydrology & meteorology
15
576 - Genetics & evolution
5
580 - Plants (Botany)
35
581 - Specific topics in natural history
4
600 - Technology
610 - Medicine & health
17
612 - Human physiology
3
620 - Engineering & allied operations
54
630 - Agriculture & related technologies
658 - General management
7
700 - The arts; fine & decorative arts
34
720 - Architecture
7
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
3
900 - History & geography
16