Classification
320 - Political science
520 - Astronomy & allied sciences
600 - Technology
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
2
380 - Commerce, communications & transportation
2
297 - Islam, Babism & Bahai Faith
1
330 - Economics
1
333 - Economics of land & energy
1
363 - Other social problems & services
1