Classification
581 - Specific topics in natural history
700 - The arts; fine & decorative arts
600 - Technology
5
330 - Economics
4
333 - Economics of land & energy
3
363 - Other social problems & services
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
320 - Political science
2
380 - Commerce, communications & transportation
2
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
610 - Medicine & health
2
630 - Agriculture & related technologies
2
340 - Law
1
350 - Public administration & military science
1
370 - Education
1
612 - Human physiology
1
620 - Engineering & allied operations
1
791 - Public performances
1
800 - Literature & rhetoric
1
900 - History & geography
1