Classification
000 - Computer science, information & general works
11
100 - Philosophy & psychology
1
140 - Specific philosophical schools
2
174 - Occupational ethics
8
300 - Social sciences
2
304 - Factors affecting social behavior
1
320 - Political science
9
330 - Economics
14
331 - Labor economics
1
333 - Economics of land & energy
16
337 - International economics
1
338 - Production
26
339 - Macroeconomics & related topics
1
340 - Law
2
341 - Law of nations
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
17
370 - Education
1
380 - Commerce, communications & transportation
3
410 - Linguistics
1
414 - Phonology & phonetics
1
420 - English & Old English
1
500 - Natural sciences & mathematics
1
519 - Probabilities & applied mathematics
1
540 - Chemistry & allied sciences
3
546 - Inorganic chemistry
1
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
8
553 - Economic geology
2
576 - Genetics & evolution
2
580 - Plants (Botany)
4
581 - Specific topics in natural history
2
600 - Technology
7
610 - Medicine & health
4
612 - Human physiology
1
620 - Engineering & allied operations
5
621 - Applied physics
4
628 - Sanitary & municipal engineering
2
630 - Agriculture & related technologies
4
657 - Accounting
1
658 - General management
8
670 - Manufacturing
6
700 - The arts; fine & decorative arts
8
710 - Civic & landscape art
2
720 - Architecture
2
900 - History & geography
2