Classification
330 - Economics
4
006 - Special computer methods
3
300 - Social sciences
2
510 - Mathematics
2
001 - Knowledge
1
011 - Bibliographies
1
158 - Applied psychology
1
174 - Occupational ethics
1
190 - Modern western philosophy
1
191 - Philosophy of United States & Canada
1
301 - Sociology & anthropology
1
302 - Social interaction
1
320 - Political science
1
331 - Labor economics
1
332 - Financial economics
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
500 - Natural sciences & mathematics
1
530 - Physics
1
650 - Management & auxiliary services
1
658 - General management
1
659 - Advertising & public relations
1
670 - Manufacturing
1
745 - Decorative arts
1
770 - Photography, photographs & computer art
1
778 - Fields & kinds of photography
1
800 - Literature & rhetoric
1