Classification
610 - Medicine & health
800 - Literature & rhetoric
363 - Other social problems & services
9
620 - Engineering & allied operations
9
700 - The arts; fine & decorative arts
8
600 - Technology
7
900 - History & geography
7
333 - Economics of land & energy
6
380 - Commerce, communications & transportation
6
580 - Plants (Botany)
6
000 - Computer science, information & general works
4
140 - Specific philosophical schools
4
330 - Economics
4
576 - Genetics & evolution
4
630 - Agriculture & related technologies
4
720 - Architecture
4
300 - Social sciences
3
340 - Law
3
170 - Ethics
2
370 - Education
2
500 - Natural sciences & mathematics
2
551 - Geology, hydrology & meteorology
2
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
414 - Phonology & phonetics
1
590 - Animals (Zoology)
1
658 - General management
1