Classification
340 - Law
33
320 - Political science
22
330 - Economics
22
700 - The arts; fine & decorative arts
15
304 - Factors affecting social behavior
5
600 - Technology
5
900 - History & geography
5
300 - Social sciences
4
140 - Specific philosophical schools
3
333 - Economics of land & energy
3
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
576 - Genetics & evolution
3
620 - Engineering & allied operations
3
331 - Labor economics
2
344 - Labor, social, education & cultural law
2
551 - Geology, hydrology & meteorology
2
610 - Medicine & health
2
000 - Computer science, information & general works
1
260 - Social & ecclesiastical theology
1
301 - Sociology & anthropology
1
361 - Social problems & social welfare in general
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
658 - General management
1
780 - Music
1
800 - Literature & rhetoric
1
942 - England & Wales
1
944 - France & Monaco
1