Classification
000 - Computer science, information & general works
3
005 - Computer programming, programs & data
4
006 - Special computer methods
3
158 - Applied psychology
1
303 - Social processes
1
306 - Culture & institutions
1
330 - Economics
3
331 - Labor economics
1
333 - Economics of land & energy
1
338 - Production
1
363 - Other social problems & services
1
647 - Management of public households
1
650 - Management & auxiliary services
1
658 - General management
3
929 - Genealogy, names & insignia
1