Classification
320 - Political science
551 - Geology, hydrology & meteorology
600 - Technology
7
900 - History & geography
620 - Engineering & allied operations
5
700 - The arts; fine & decorative arts
5
330 - Economics
4
333 - Economics of land & energy
4
363 - Other social problems & services
4
380 - Commerce, communications & transportation
4
610 - Medicine & health
4
720 - Architecture
3
370 - Education
2
000 - Computer science, information & general works
1
340 - Law
1
360 - Social problems & services; associations
1
580 - Plants (Botany)
1