Classification
576 - Genetics & evolution
600 - Technology
11
000 - Computer science, information & general works
10
700 - The arts; fine & decorative arts
10
620 - Engineering & allied operations
8
900 - History & geography
8
333 - Economics of land & energy
6
540 - Chemistry & allied sciences
4
330 - Economics
2
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
580 - Plants (Botany)
2
610 - Medicine & health
2
304 - Factors affecting social behavior
1
320 - Political science
1
363 - Other social problems & services
1
370 - Education
1
414 - Phonology & phonetics
1
530 - Physics
1
581 - Specific topics in natural history
1
770 - Photography, photographs & computer art
1