Classification
720 - Architecture
700 - The arts; fine & decorative arts
8
333 - Economics of land & energy
7
600 - Technology
7
620 - Engineering & allied operations
6
000 - Computer science, information & general works
5
363 - Other social problems & services
5
330 - Economics
4
580 - Plants (Botany)
4
900 - History & geography
4
380 - Commerce, communications & transportation
3
551 - Geology, hydrology & meteorology
3
630 - Agriculture & related technologies
2
320 - Political science
1
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
550 - Earth sciences
1
610 - Medicine & health
1
657 - Accounting
1
658 - General management
1
800 - Literature & rhetoric
1