Classification
361 - Social problems & social welfare in general
900 - History & geography
333 - Economics of land & energy
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
370 - Education
1
500 - Natural sciences & mathematics
1
576 - Genetics & evolution
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1