Classification
001 - Knowledge
3
153 - Mental processes & intelligence
1
158 - Applied psychology
5
170 - Ethics
2
300 - Social sciences
3
302 - Social interaction
3
330 - Economics
14
331 - Labor economics
5
332 - Financial economics
13
337 - International economics
1
338 - Production
10
368 - Insurance
2
381 - Commerce
5
384 - Communications; telecommunication
1
500 - Natural sciences & mathematics
1
621 - Applied physics
1
643 - Housing & household equipment
1
646 - Sewing, clothing & personal living
1
650 - Management & auxiliary services
3
658 - General management
21
659 - Advertising & public relations
2
670 - Manufacturing
1
813 - American fiction in English
1