Classification
620 - Engineering & allied operations
700 - The arts; fine & decorative arts
600 - Technology
169
900 - History & geography
152
333 - Economics of land & energy
85
000 - Computer science, information & general works
51
380 - Commerce, communications & transportation
41
363 - Other social problems & services
37
330 - Economics
34
610 - Medicine & health
33
140 - Specific philosophical schools
27
576 - Genetics & evolution
27
580 - Plants (Botany)
27
340 - Law
13
414 - Phonology & phonetics
13
630 - Agriculture & related technologies
13
720 - Architecture
12
540 - Chemistry & allied sciences
10
500 - Natural sciences & mathematics
9
320 - Political science
7
370 - Education
7
530 - Physics
7
551 - Geology, hydrology & meteorology
7
400 - Language
6
800 - Literature & rhetoric
6
658 - General management
4
100 - Philosophy & psychology
3
410 - Linguistics
3
657 - Accounting
2
770 - Photography, photographs & computer art
2
160 - Logic
1
304 - Factors affecting social behavior
1
612 - Human physiology
1