Classification
580 - Plants (Botany)
000 - Computer science, information & general works
22
330 - Economics
13
551 - Geology, hydrology & meteorology
13
610 - Medicine & health
11
700 - The arts; fine & decorative arts
11
333 - Economics of land & energy
9
363 - Other social problems & services
8
380 - Commerce, communications & transportation
6
581 - Specific topics in natural history
6
600 - Technology
6
800 - Literature & rhetoric
6
140 - Specific philosophical schools
4
630 - Agriculture & related technologies
4
720 - Architecture
4
320 - Political science
3
620 - Engineering & allied operations
3
340 - Law
2
400 - Language
2
540 - Chemistry & allied sciences
2
612 - Human physiology
2
900 - History & geography
2
300 - Social sciences
1
304 - Factors affecting social behavior
1
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
615 - Pharmacology & therapeutics
1
650 - Management & auxiliary services
1
658 - General management
1