Classification
330 - Economics
620 - Engineering & allied operations
700 - The arts; fine & decorative arts
800 - Literature & rhetoric
600 - Technology
11
900 - History & geography
11
333 - Economics of land & energy
7
363 - Other social problems & services
7
000 - Computer science, information & general works
4
380 - Commerce, communications & transportation
4
576 - Genetics & evolution
4
720 - Architecture
4
610 - Medicine & health
3
658 - General management
3
140 - Specific philosophical schools
2
370 - Education
2
580 - Plants (Botany)
2
160 - Logic
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
301 - Sociology & anthropology
1
340 - Law
1
551 - Geology, hydrology & meteorology
1