Classification
000 - Computer science, information & general works
500 - Natural sciences & mathematics
620 - Engineering & allied operations
333 - Economics of land & energy
4
300 - Social sciences
2
370 - Education
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
900 - History & geography
2
120 - Epistemology, causation & humankind
1
330 - Economics
1
338 - Production
1
340 - Law
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
414 - Phonology & phonetics
1
530 - Physics
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
658 - General management
1
780 - Music
1