Classification
000 - Computer science, information & general works
540 - Chemistry & allied sciences
615 - Pharmacology & therapeutics
610 - Medicine & health
7
140 - Specific philosophical schools
3
330 - Economics
2
333 - Economics of land & energy
2
580 - Plants (Botany)
2
700 - The arts; fine & decorative arts
2
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
600 - Technology
1
620 - Engineering & allied operations
1