Classification
000 - Computer science, information & general works
2
140 - Specific philosophical schools
1
330 - Economics
3
333 - Economics of land & energy
2
340 - Law
1
361 - Social problems & social welfare in general
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
610 - Medicine & health
2
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
3
900 - History & geography
2