Classification
140 - Specific philosophical schools
000 - Computer science, information & general works
3
600 - Technology
3
500 - Natural sciences & mathematics
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
330 - Economics
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
610 - Medicine & health
1
612 - Human physiology
1
720 - Architecture
1
780 - Music
1
800 - Literature & rhetoric
1