Classification
600 - Technology
4
620 - Engineering & allied operations
700 - The arts; fine & decorative arts
4
900 - History & geography
4
333 - Economics of land & energy
3
000 - Computer science, information & general works
2
330 - Economics
2
380 - Commerce, communications & transportation
2
610 - Medicine & health
2
304 - Factors affecting social behavior
1
370 - Education
1
720 - Architecture
1