Classification
100 - Philosophy & psychology
200 - Religion
6
333 - Economics of land & energy
6
400 - Language
6
000 - Computer science, information & general works
5
140 - Specific philosophical schools
4
320 - Political science
4
700 - The arts; fine & decorative arts
4
900 - History & geography
4
297 - Islam, Babism & Bahai Faith
3
363 - Other social problems & services
3
304 - Factors affecting social behavior
2
370 - Education
2
380 - Commerce, communications & transportation
2
410 - Linguistics
2
500 - Natural sciences & mathematics
2
610 - Medicine & health
2
720 - Architecture
2
170 - Ethics
1
300 - Social sciences
1
301 - Sociology & anthropology
1
330 - Economics
1
340 - Law
1
580 - Plants (Botany)
1
600 - Technology
1
620 - Engineering & allied operations
1
920 - Biography, genealogy & insignia
1