Classification
330 - Economics
363 - Other social problems & services
380 - Commerce, communications & transportation
657 - Accounting
000 - Computer science, information & general works
5
333 - Economics of land & energy
5
600 - Technology
5
140 - Specific philosophical schools
4
320 - Political science
4
576 - Genetics & evolution
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
650 - Management & auxiliary services
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
100 - Philosophy & psychology
1
170 - Ethics
1
300 - Social sciences
1
340 - Law
1
361 - Social problems & social welfare in general
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
658 - General management
1
720 - Architecture
1
800 - Literature & rhetoric
1