Classification
530 - Physics
333 - Economics of land & energy
13
000 - Computer science, information & general works
11
700 - The arts; fine & decorative arts
11
576 - Genetics & evolution
6
100 - Philosophy & psychology
5
900 - History & geography
4
370 - Education
3
500 - Natural sciences & mathematics
3
600 - Technology
3
200 - Religion
2
301 - Sociology & anthropology
2
520 - Astronomy & allied sciences
2
170 - Ethics
1
296 - Judaism
1
300 - Social sciences
1
330 - Economics
1
340 - Law
1
350 - Public administration & military science
1
380 - Commerce, communications & transportation
1
400 - Language
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
800 - Literature & rhetoric
1