Classification
330 - Economics
363 - Other social problems & services
610 - Medicine & health
720 - Architecture
380 - Commerce, communications & transportation
7
000 - Computer science, information & general works
6
333 - Economics of land & energy
6
700 - The arts; fine & decorative arts
6
900 - History & geography
6
140 - Specific philosophical schools
4
320 - Political science
4
370 - Education
4
600 - Technology
4
551 - Geology, hydrology & meteorology
3
620 - Engineering & allied operations
3
658 - General management
2
170 - Ethics
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
301 - Sociology & anthropology
1
340 - Law
1
550 - Earth sciences
1
580 - Plants (Botany)
1
800 - Literature & rhetoric
1