Classification
610 - Medicine & health
4
320 - Political science
2
050 - General serial publications
1
302 - Social interaction
1
306 - Culture & institutions
1
330 - Economics
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
572 - Biochemistry
1
900 - History & geography
1
909 - World history
1