Classification
000 - Computer science, information & general works
2
320 - Political science
2
333 - Economics of land & energy
380 - Commerce, communications & transportation
551 - Geology, hydrology & meteorology
330 - Economics
1
363 - Other social problems & services
1
370 - Education
1
600 - Technology
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1
900 - History & geography
1