Classification
000 - Computer science, information & general works
700 - The arts; fine & decorative arts
219
600 - Technology
200
333 - Economics of land & energy
149
620 - Engineering & allied operations
119
900 - History & geography
95
576 - Genetics & evolution
89
500 - Natural sciences & mathematics
80
380 - Commerce, communications & transportation
78
363 - Other social problems & services
74
330 - Economics
71
610 - Medicine & health
58
140 - Specific philosophical schools
44
580 - Plants (Botany)
36
530 - Physics
31
658 - General management
31
720 - Architecture
30
400 - Language
25
551 - Geology, hydrology & meteorology
24
630 - Agriculture & related technologies
24
320 - Political science
15
540 - Chemistry & allied sciences
15
340 - Law
14
414 - Phonology & phonetics
14
800 - Literature & rhetoric
14
300 - Social sciences
12
370 - Education
11
581 - Specific topics in natural history
8
100 - Philosophy & psychology
7
410 - Linguistics
5
170 - Ethics
4
612 - Human physiology
4
550 - Earth sciences
3
650 - Management & auxiliary services
3
780 - Music
3
160 - Logic
2
304 - Factors affecting social behavior
2
331 - Labor economics
2
520 - Astronomy & allied sciences
2
657 - Accounting
2
770 - Photography, photographs & computer art
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
302 - Social interaction
1
361 - Social problems & social welfare in general
1
381 - Commerce
1
519 - Probabilities & applied mathematics
1
615 - Pharmacology & therapeutics
1
920 - Biography, genealogy & insignia
1