Classification
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
304 - Factors affecting social behavior
1
320 - Political science
340 - Law
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
610 - Medicine & health
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
1
800 - Literature & rhetoric
1