Classification
320 - Political science
380 - Commerce, communications & transportation
400 - Language
900 - History & geography
000 - Computer science, information & general works
2
100 - Philosophy & psychology
1
300 - Social sciences
1
330 - Economics
1
360 - Social problems & services; associations
1
370 - Education
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
780 - Music
1