Classification
370 - Education
410 - Linguistics
610 - Medicine & health
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
3
333 - Economics of land & energy
2
170 - Ethics
1
304 - Factors affecting social behavior
1
330 - Economics
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1