Classification
900 - History & geography
107
300 - Social sciences
17
700 - The arts; fine & decorative arts
16
320 - Political science
12
200 - Religion
9
800 - Literature & rhetoric
9
330 - Economics
8
610 - Medicine & health
8
100 - Philosophy & psychology
7
140 - Specific philosophical schools
7
301 - Sociology & anthropology
6
340 - Law
6
370 - Education
5
296 - Judaism
4
304 - Factors affecting social behavior
4
380 - Commerce, communications & transportation
4
400 - Language
4
410 - Linguistics
3
780 - Music
3
297 - Islam, Babism & Bahai Faith
2
791 - Public performances
2
000 - Computer science, information & general works
1
170 - Ethics
1
333 - Economics of land & energy
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
770 - Photography, photographs & computer art
1