Classification
380 - Commerce, communications & transportation
576 - Genetics & evolution
700 - The arts; fine & decorative arts
333 - Economics of land & energy
10
620 - Engineering & allied operations
10
610 - Medicine & health
8
600 - Technology
7
000 - Computer science, information & general works
6
500 - Natural sciences & mathematics
6
580 - Plants (Botany)
6
140 - Specific philosophical schools
5
300 - Social sciences
3
363 - Other social problems & services
3
414 - Phonology & phonetics
3
540 - Chemistry & allied sciences
3
551 - Geology, hydrology & meteorology
3
581 - Specific topics in natural history
3
612 - Human physiology
3
658 - General management
3
900 - History & geography
3
100 - Philosophy & psychology
2
330 - Economics
2
340 - Law
1
410 - Linguistics
1
800 - Literature & rhetoric
1