Classification
600 - Technology
620 - Engineering & allied operations
178
900 - History & geography
157
700 - The arts; fine & decorative arts
155
333 - Economics of land & energy
107
000 - Computer science, information & general works
98
380 - Commerce, communications & transportation
68
363 - Other social problems & services
66
610 - Medicine & health
57
330 - Economics
54
576 - Genetics & evolution
41
140 - Specific philosophical schools
40
630 - Agriculture & related technologies
32
580 - Plants (Botany)
30
720 - Architecture
19
340 - Law
18
551 - Geology, hydrology & meteorology
18
320 - Political science
17
500 - Natural sciences & mathematics
16
370 - Education
12
530 - Physics
12
414 - Phonology & phonetics
11
540 - Chemistry & allied sciences
10
581 - Specific topics in natural history
8
658 - General management
8
304 - Factors affecting social behavior
7
400 - Language
6
800 - Literature & rhetoric
6
300 - Social sciences
4
170 - Ethics
3
361 - Social problems & social welfare in general
3
612 - Human physiology
3
100 - Philosophy & psychology
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
336 - Public finance
1
350 - Public administration & military science
1
360 - Social problems & services; associations
1
410 - Linguistics
1
550 - Earth sciences
1
770 - Photography, photographs & computer art
1
780 - Music
1