Classification
610 - Medicine & health
136
615 - Pharmacology & therapeutics
20
820 - English & Old English literatures
5
580 - Plants (Botany)
3
900 - History & geography
3
540 - Chemistry & allied sciences
2
620 - Engineering & allied operations
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
200 - Religion
1
320 - Political science
1
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
547 - Organic chemistry
1
570 - Life sciences; biology
1
600 - Technology
1
613 - Personal health & safety
1
658 - General management
1
660 - Chemical engineering
1
800 - Literature & rhetoric
1