Classification
000 - Computer science, information & general works
4
100 - Philosophy & psychology
2
140 - Specific philosophical schools
170 - Ethics
200 - Religion
1
300 - Social sciences
2
304 - Factors affecting social behavior
1
320 - Political science
1
330 - Economics
4
333 - Economics of land & energy
3
340 - Law
3
361 - Social problems & social welfare in general
1
363 - Other social problems & services
4
370 - Education
4
380 - Commerce, communications & transportation
400 - Language
3
410 - Linguistics
2
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
3
580 - Plants (Botany)
2
600 - Technology
4
610 - Medicine & health
7
620 - Engineering & allied operations
3
630 - Agriculture & related technologies
2
658 - General management
1
700 - The arts; fine & decorative arts
4
720 - Architecture
2
800 - Literature & rhetoric
2
900 - History & geography
4
920 - Biography, genealogy & insignia
1