Classification
000 - Computer science, information & general works
1
001 - Knowledge
1
003 - Systems
3
006 - Special computer methods
8
153 - Mental processes & intelligence
2
155 - Differential & developmental psychology
6
158 - Applied psychology
3
170 - Ethics
1
179 - Other ethical norms
1
300 - Social sciences
41
302 - Social interaction
303 - Social processes
9
305 - Social groups
3
306 - Culture & institutions
1
320 - Political science
2
330 - Economics
46
331 - Labor economics
15
332 - Financial economics
1
333 - Economics of land & energy
3
338 - Production
12
362 - Social welfare problems & services
1
380 - Commerce, communications & transportation
3
381 - Commerce
7
384 - Communications; telecommunication
8
500 - Natural sciences & mathematics
27
610 - Medicine & health
1
620 - Engineering & allied operations
2
650 - Management & auxiliary services
3
658 - General management
51
659 - Advertising & public relations
1
670 - Manufacturing
23
700 - The arts; fine & decorative arts
1
745 - Decorative arts
2
770 - Photography, photographs & computer art
3
775 - Digital photography
1