Classification
580 - Plants (Botany)
610 - Medicine & health
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
15
333 - Economics of land & energy
15
600 - Technology
12
363 - Other social problems & services
8
620 - Engineering & allied operations
8
330 - Economics
7
380 - Commerce, communications & transportation
7
630 - Agriculture & related technologies
7
551 - Geology, hydrology & meteorology
4
581 - Specific topics in natural history
4
900 - History & geography
4
100 - Philosophy & psychology
3
140 - Specific philosophical schools
3
576 - Genetics & evolution
3
300 - Social sciences
2
400 - Language
2
414 - Phonology & phonetics
2
540 - Chemistry & allied sciences
2
658 - General management
2
320 - Political science
1
340 - Law
1
361 - Social problems & social welfare in general
1
370 - Education
1
530 - Physics
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1