Classification
370 - Education
400 - Language
700 - The arts; fine & decorative arts
7
100 - Philosophy & psychology
4
333 - Economics of land & energy
4
410 - Linguistics
3
600 - Technology
3
000 - Computer science, information & general works
2
140 - Specific philosophical schools
2
320 - Political science
2
500 - Natural sciences & mathematics
2
610 - Medicine & health
2
800 - Literature & rhetoric
2
900 - History & geography
2
120 - Epistemology, causation & humankind
1
380 - Commerce, communications & transportation
1
520 - Astronomy & allied sciences
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1