Classification
170 - Ethics
23
140 - Specific philosophical schools
4
174 - Occupational ethics
4
570 - Life sciences; biology
4
000 - Computer science, information & general works
3
610 - Medicine & health
3
330 - Economics
2
340 - Law
2
363 - Other social problems & services
2
100 - Philosophy & psychology
1
300 - Social sciences
1
370 - Education
1
380 - Commerce, communications & transportation
1
600 - Technology
1
620 - Engineering & allied operations
1