Classification
363 - Other social problems & services
576 - Genetics & evolution
800 - Literature & rhetoric
000 - Computer science, information & general works
7
333 - Economics of land & energy
7
380 - Commerce, communications & transportation
7
620 - Engineering & allied operations
7
700 - The arts; fine & decorative arts
7
600 - Technology
6
330 - Economics
5
900 - History & geography
5
304 - Factors affecting social behavior
4
610 - Medicine & health
4
320 - Political science
3
340 - Law
3
410 - Linguistics
3
140 - Specific philosophical schools
2
170 - Ethics
2
300 - Social sciences
2
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
581 - Specific topics in natural history
2
630 - Agriculture & related technologies
2
658 - General management
2
720 - Architecture
2
364 - Criminology
1
370 - Education
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1