Classification
576 - Genetics & evolution
620 - Engineering & allied operations
600 - Technology
38
700 - The arts; fine & decorative arts
35
900 - History & geography
35
333 - Economics of land & energy
25
000 - Computer science, information & general works
18
330 - Economics
13
380 - Commerce, communications & transportation
9
580 - Plants (Botany)
9
363 - Other social problems & services
8
414 - Phonology & phonetics
6
720 - Architecture
6
500 - Natural sciences & mathematics
5
658 - General management
4
140 - Specific philosophical schools
3
340 - Law
3
610 - Medicine & health
3
800 - Literature & rhetoric
3
320 - Political science
2
630 - Agriculture & related technologies
2
770 - Photography, photographs & computer art
2
297 - Islam, Babism & Bahai Faith
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
657 - Accounting
1