Classification
330 - Economics
333 - Economics of land & energy
576 - Genetics & evolution
700 - The arts; fine & decorative arts
900 - History & geography
620 - Engineering & allied operations
11
600 - Technology
10
000 - Computer science, information & general works
9
720 - Architecture
5
610 - Medicine & health
4
380 - Commerce, communications & transportation
3
580 - Plants (Botany)
3
500 - Natural sciences & mathematics
2
800 - Literature & rhetoric
2
140 - Specific philosophical schools
1
297 - Islam, Babism & Bahai Faith
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
540 - Chemistry & allied sciences
1
658 - General management
1