Classification
361 - Social problems & social welfare in general
000 - Computer science, information & general works
19
610 - Medicine & health
14
330 - Economics
8
363 - Other social problems & services
8
600 - Technology
6
333 - Economics of land & energy
5
580 - Plants (Botany)
5
620 - Engineering & allied operations
5
700 - The arts; fine & decorative arts
5
140 - Specific philosophical schools
4
380 - Commerce, communications & transportation
4
630 - Agriculture & related technologies
4
370 - Education
3
590 - Animals (Zoology)
3
612 - Human physiology
3
414 - Phonology & phonetics
2
576 - Genetics & evolution
2
658 - General management
2
800 - Literature & rhetoric
2
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
320 - Political science
1
360 - Social problems & services; associations
1
364 - Criminology
1
500 - Natural sciences & mathematics
1
780 - Music
1
900 - History & geography
1