Classification
363 - Other social problems & services
576 - Genetics & evolution
620 - Engineering & allied operations
32
700 - The arts; fine & decorative arts
600 - Technology
23
900 - History & geography
20
333 - Economics of land & energy
16
380 - Commerce, communications & transportation
15
000 - Computer science, information & general works
12
140 - Specific philosophical schools
12
500 - Natural sciences & mathematics
9
580 - Plants (Botany)
9
551 - Geology, hydrology & meteorology
8
610 - Medicine & health
8
720 - Architecture
8
414 - Phonology & phonetics
7
320 - Political science
6
300 - Social sciences
5
330 - Economics
5
340 - Law
5
800 - Literature & rhetoric
5
581 - Specific topics in natural history
4
658 - General management
4
370 - Education
3
540 - Chemistry & allied sciences
3
612 - Human physiology
3
170 - Ethics
2
630 - Agriculture & related technologies
2
297 - Islam, Babism & Bahai Faith
1
657 - Accounting
1
791 - Public performances
1