Classification
000 - Computer science, information & general works
363 - Other social problems & services
380 - Commerce, communications & transportation
620 - Engineering & allied operations
658 - General management
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
2
576 - Genetics & evolution
2
600 - Technology
2
900 - History & geography
2
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
610 - Medicine & health
1
720 - Architecture
1