Classification
380 - Commerce, communications & transportation
2
800 - Literature & rhetoric
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
297 - Islam, Babism & Bahai Faith
1
320 - Political science
1
400 - Language
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1