Classification
363 - Other social problems & services
615 - Pharmacology & therapeutics
900 - History & geography
304 - Factors affecting social behavior
1
330 - Economics
1
333 - Economics of land & energy
1
414 - Phonology & phonetics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1