Classification
000 - Computer science, information & general works
2
380 - Commerce, communications & transportation
2
304 - Factors affecting social behavior
1
330 - Economics
1
363 - Other social problems & services
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1