Classification
576 - Genetics & evolution
900 - History & geography
11
320 - Political science
8
330 - Economics
8
300 - Social sciences
7
700 - The arts; fine & decorative arts
7
333 - Economics of land & energy
4
600 - Technology
4
800 - Literature & rhetoric
4
380 - Commerce, communications & transportation
2
414 - Phonology & phonetics
2
580 - Plants (Botany)
2
581 - Specific topics in natural history
2
620 - Engineering & allied operations
2
000 - Computer science, information & general works
1
340 - Law
1
363 - Other social problems & services
1
540 - Chemistry & allied sciences
1