Classification
370 - Education
610 - Medicine & health
11
000 - Computer science, information & general works
9
380 - Commerce, communications & transportation
8
363 - Other social problems & services
7
333 - Economics of land & energy
6
700 - The arts; fine & decorative arts
6
140 - Specific philosophical schools
5
580 - Plants (Botany)
5
320 - Political science
3
330 - Economics
3
551 - Geology, hydrology & meteorology
3
620 - Engineering & allied operations
3
900 - History & geography
3
200 - Religion
2
297 - Islam, Babism & Bahai Faith
2
658 - General management
2
300 - Social sciences
1
301 - Sociology & anthropology
1
340 - Law
1
414 - Phonology & phonetics
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
600 - Technology
1
630 - Agriculture & related technologies
1
720 - Architecture
1
800 - Literature & rhetoric
1