Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
15
140 - Specific philosophical schools
2
153 - Mental processes & intelligence
1
300 - Social sciences
6
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
30
320 - Political science
132
330 - Economics
303
331 - Labor economics
3
332 - Financial economics
18
333 - Economics of land & energy
94
336 - Public finance
338 - Production
8
339 - Macroeconomics & related topics
2
340 - Law
17
350 - Public administration & military science
2
361 - Social problems & social welfare in general
6
363 - Other social problems & services
75
370 - Education
12
380 - Commerce, communications & transportation
63
381 - Commerce
2
500 - Natural sciences & mathematics
3
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
2
600 - Technology
26
610 - Medicine & health
33
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
8
650 - Management & auxiliary services
1
657 - Accounting
6
658 - General management
102
670 - Manufacturing
2
700 - The arts; fine & decorative arts
2
800 - Literature & rhetoric
1
900 - History & geography
12