Classification
363 - Other social problems & services
370 - Education
24
333 - Economics of land & energy
18
700 - The arts; fine & decorative arts
9
330 - Economics
7
551 - Geology, hydrology & meteorology
7
600 - Technology
7
610 - Medicine & health
7
320 - Political science
6
380 - Commerce, communications & transportation
6
900 - History & geography
6
000 - Computer science, information & general works
4
100 - Philosophy & psychology
4
581 - Specific topics in natural history
4
140 - Specific philosophical schools
3
200 - Religion
2
300 - Social sciences
2
500 - Natural sciences & mathematics
2
620 - Engineering & allied operations
2
658 - General management
2
720 - Architecture
2
800 - Literature & rhetoric
2
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
400 - Language
1
530 - Physics
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
628 - Sanitary & municipal engineering
1
630 - Agriculture & related technologies
1
930 - History of ancient world to ca. 499
1