Classification
333 - Economics of land & energy
363 - Other social problems & services
370 - Education
700 - The arts; fine & decorative arts
2
780 - Music
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
340 - Law
1
380 - Commerce, communications & transportation
1
400 - Language
1
500 - Natural sciences & mathematics
1
620 - Engineering & allied operations
1