Classification
000 - Computer science, information & general works
500 - Natural sciences & mathematics
700 - The arts; fine & decorative arts
14
333 - Economics of land & energy
12
576 - Genetics & evolution
11
581 - Specific topics in natural history
9
380 - Commerce, communications & transportation
7
580 - Plants (Botany)
7
620 - Engineering & allied operations
7
610 - Medicine & health
6
363 - Other social problems & services
5
140 - Specific philosophical schools
4
300 - Social sciences
4
414 - Phonology & phonetics
4
551 - Geology, hydrology & meteorology
4
600 - Technology
4
330 - Economics
3
340 - Law
3
540 - Chemistry & allied sciences
3
612 - Human physiology
3
658 - General management
3
900 - History & geography
3
320 - Political science
2
530 - Physics
2
410 - Linguistics
1
720 - Architecture
1