Classification
320 - Political science
336
330 - Economics
336
576 - Genetics & evolution
900 - History & geography
300 - Social sciences
52
700 - The arts; fine & decorative arts
9
340 - Law
5
140 - Specific philosophical schools
1
200 - Religion
1
343 - Military, tax, trade & industrial law
1
800 - Literature & rhetoric
1
973 - United States
1