Classification
000 - Computer science, information & general works
610 - Medicine & health
700 - The arts; fine & decorative arts
46
363 - Other social problems & services
45
580 - Plants (Botany)
35
333 - Economics of land & energy
32
140 - Specific philosophical schools
29
581 - Specific topics in natural history
29
551 - Geology, hydrology & meteorology
25
330 - Economics
24
380 - Commerce, communications & transportation
15
600 - Technology
15
540 - Chemistry & allied sciences
14
576 - Genetics & evolution
13
320 - Political science
12
620 - Engineering & allied operations
11
630 - Agriculture & related technologies
11
658 - General management
9
900 - History & geography
8
370 - Education
7
304 - Factors affecting social behavior
6
500 - Natural sciences & mathematics
6
414 - Phonology & phonetics
5
530 - Physics
4
800 - Literature & rhetoric
4
100 - Philosophy & psychology
3
300 - Social sciences
3
340 - Law
3
612 - Human physiology
3
170 - Ethics
2
301 - Sociology & anthropology
2
550 - Earth sciences
2
200 - Religion
1
364 - Criminology
1
398 - Folklore
1
400 - Language
1
410 - Linguistics
1
520 - Astronomy & allied sciences
1
590 - Animals (Zoology)
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1