Classification
370 - Education
380 - Commerce, communications & transportation
576 - Genetics & evolution
140 - Specific philosophical schools
4
363 - Other social problems & services
4
000 - Computer science, information & general works
3
330 - Economics
3
600 - Technology
3
658 - General management
3
333 - Economics of land & energy
2
551 - Geology, hydrology & meteorology
2
581 - Specific topics in natural history
2
610 - Medicine & health
2
700 - The arts; fine & decorative arts
2
297 - Islam, Babism & Bahai Faith
1
320 - Political science
1
400 - Language
1
410 - Linguistics
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
657 - Accounting
1
900 - History & geography
1