Classification
620 - Engineering & allied operations
31
333 - Economics of land & energy
8
621 - Applied physics
6
600 - Technology
5
000 - Computer science, information & general works
4
541 - Physical chemistry
4
700 - The arts; fine & decorative arts
4
380 - Commerce, communications & transportation
3
576 - Genetics & evolution
3
530 - Physics
2
720 - Architecture
2
900 - History & geography
2
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
546 - Inorganic chemistry
1
548 - Crystallography
1
553 - Economic geology
1
610 - Medicine & health
1
660 - Chemical engineering
1
691 - Building materials
1