Classification
000 - Computer science, information & general works
330 - Economics
333 - Economics of land & energy
5
600 - Technology
140 - Specific philosophical schools
3
363 - Other social problems & services
3
700 - The arts; fine & decorative arts
3
320 - Political science
2
551 - Geology, hydrology & meteorology
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
340 - Law
1
370 - Education
1
770 - Photography, photographs & computer art
1
780 - Music
1
800 - Literature & rhetoric
1
900 - History & geography
1