Classification
000 - Computer science, information & general works
7
140 - Specific philosophical schools
4
170 - Ethics
1
320 - Political science
4
330 - Economics
12
333 - Economics of land & energy
4
363 - Other social problems & services
12
380 - Commerce, communications & transportation
2
414 - Phonology & phonetics
2
530 - Physics
1
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
7
581 - Specific topics in natural history
5
590 - Animals (Zoology)
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
4
720 - Architecture
1
900 - History & geography