Classification
690 - Buildings
271
624 - Civil engineering
72
620 - Engineering & allied operations
24
621 - Applied physics
23
658 - General management
22
693 - Specific materials & purposes
17
691 - Building materials
13
697 - Heating, ventilating & air-conditioning
6
720 - Architecture
5
660 - Chemical engineering
4
333 - Economics of land & energy
3
519 - Probabilities & applied mathematics
3
670 - Manufacturing
3
343 - Military, tax, trade & industrial law
2
352 - General considerations of public administration
2
657 - Accounting
2
363 - Other social problems & services
1
370 - Education
1
531 - Classical mechanics; solid mechanics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
613 - Personal health & safety
1
628 - Sanitary & municipal engineering
1
629 - Other branches of engineering
1
650 - Management & auxiliary services
1
725 - Public structures
1