Classification
363 - Other social problems & services
550 - Earth sciences
900 - History & geography
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
720 - Architecture
1