Classification
304 - Factors affecting social behavior
1
330 - Economics
7
331 - Labor economics
10
332 - Financial economics
1
368 - Insurance
1
381 - Commerce
4
384 - Communications; telecommunication
1
658 - General management
9
770 - Photography, photographs & computer art
1
778 - Fields & kinds of photography
1
780 - Music
781 - General principles & musical forms
12