Classification
320 - Political science
380 - Commerce, communications & transportation
400 - Language
700 - The arts; fine & decorative arts
900 - History & geography
000 - Computer science, information & general works
3
370 - Education
3
600 - Technology
3
620 - Engineering & allied operations
3
100 - Philosophy & psychology
2
300 - Social sciences
2
330 - Economics
2
610 - Medicine & health
2
780 - Music
2
333 - Economics of land & energy
1
340 - Law
1
360 - Social problems & services; associations
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
630 - Agriculture & related technologies
1
658 - General management
1
720 - Architecture
1