Classification
340 - Law
55
330 - Economics
33
320 - Political science
24
900 - History & geography
19
576 - Genetics & evolution
15
380 - Commerce, communications & transportation
8
700 - The arts; fine & decorative arts
5
333 - Economics of land & energy
4
600 - Technology
4
300 - Social sciences
2
346 - Private law
2
398 - Folklore
2
551 - Geology, hydrology & meteorology
2
658 - General management
2
170 - Ethics
1
341 - Law of nations
1
610 - Medicine & health
1
770 - Photography, photographs & computer art
1
780 - Music
1
800 - Literature & rhetoric
1