Classification
000 - Computer science, information & general works
38
600 - Technology
30
620 - Engineering & allied operations
24
700 - The arts; fine & decorative arts
24
333 - Economics of land & energy
22
900 - History & geography
21
380 - Commerce, communications & transportation
7
580 - Plants (Botany)
5
330 - Economics
4
363 - Other social problems & services
4
500 - Natural sciences & mathematics
4
340 - Law
3
530 - Physics
3
540 - Chemistry & allied sciences
3
576 - Genetics & evolution
3
610 - Medicine & health
3
800 - Literature & rhetoric
3
414 - Phonology & phonetics
2
551 - Geology, hydrology & meteorology
2
630 - Agriculture & related technologies
2
140 - Specific philosophical schools
1
370 - Education
1
612 - Human physiology
1
780 - Music
1