Classification
000 - Computer science, information & general works
2
001 - Knowledge
2
011 - Bibliographies
1
150 - Psychology
4
153 - Mental processes & intelligence
1
155 - Differential & developmental psychology
3
158 - Applied psychology
15
170 - Ethics
1
174 - Occupational ethics
1
291 - [Unassigned]
1
300 - Social sciences
20
302 - Social interaction
18
306 - Culture & institutions
9
320 - Political science
2
330 - Economics
30
331 - Labor economics
69
333 - Economics of land & energy
1
338 - Production
3
340 - Law
1
361 - Social problems & social welfare in general
1
370 - Education
1
500 - Natural sciences & mathematics
3
600 - Technology
1
610 - Medicine & health
2
620 - Engineering & allied operations
1
650 - Management & auxiliary services
21
658 - General management
46
670 - Manufacturing
2
700 - The arts; fine & decorative arts
1
900 - History & geography
1