Classification
000 - Computer science, information & general works
2
530 - Physics
610 - Medicine & health
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
1
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
400 - Language
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
600 - Technology
1
620 - Engineering & allied operations
1