Classification
610 - Medicine & health
61
910 - Geography & travel
41
700 - The arts; fine & decorative arts
27
900 - History & geography
21
620 - Engineering & allied operations
20
320 - Political science
14
330 - Economics
12
000 - Computer science, information & general works
9
333 - Economics of land & energy
8
500 - Natural sciences & mathematics
7
600 - Technology
7
400 - Language
6
140 - Specific philosophical schools
5
363 - Other social problems & services
5
374 - Adult education
5
580 - Plants (Botany)
5
301 - Sociology & anthropology
4
380 - Commerce, communications & transportation
4
384 - Communications; telecommunication
4
410 - Linguistics
4
519 - Probabilities & applied mathematics
4
658 - General management
4
300 - Social sciences
3
370 - Education
3
530 - Physics
3
770 - Photography, photographs & computer art
3
005 - Computer programming, programs & data
2
331 - Labor economics
2
414 - Phonology & phonetics
2
520 - Astronomy & allied sciences
2
551 - Geology, hydrology & meteorology
2
611 - Human anatomy, cytology & histology
2
612 - Human physiology
2
745 - Decorative arts
2
800 - Literature & rhetoric
2
001 - Knowledge
1
010 - Bibliography
1
020 - Library & information sciences
1
304 - Factors affecting social behavior
1
340 - Law
1
361 - Social problems & social welfare in general
1
362 - Social welfare problems & services
1
368 - Insurance
1
522 - Techniques, equipment & materials
1
523 - Specific celestial bodies & phenomena
1
540 - Chemistry & allied sciences
1
571 - Physiology & related subjects
1
595 - Arthropods
1
597 - Cold-blooded vertebrates; fishes
1
615 - Pharmacology & therapeutics
1
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