Classification
621 - Applied physics
620 - Engineering & allied operations
18
333 - Economics of land & energy
5
781 - General principles & musical forms
5
658 - General management
4
745 - Decorative arts
4
004 - Data processing & computer science
3
384 - Communications; telecommunication
3
006 - Special computer methods
1
153 - Mental processes & intelligence
1
302 - Social interaction
1
304 - Factors affecting social behavior
1
330 - Economics
1
331 - Labor economics
1
500 - Natural sciences & mathematics
1
681 - Precision instruments & other devices
1
770 - Photography, photographs & computer art
1
777 - [Unassigned]
1
778 - Fields & kinds of photography
1
791 - Public performances
1