Classification
576 - Genetics & evolution
610 - Medicine & health
34
363 - Other social problems & services
20
380 - Commerce, communications & transportation
8
370 - Education
5
600 - Technology
5
551 - Geology, hydrology & meteorology
4
612 - Human physiology
4
330 - Economics
3
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
340 - Law
2
581 - Specific topics in natural history
2
620 - Engineering & allied operations
2
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
570 - Life sciences; biology
1
572 - Biochemistry
1
579 - Microorganisms, fungi & algae
1
580 - Plants (Botany)
1
613 - Personal health & safety
1
616 - Diseases
1
700 - The arts; fine & decorative arts
1