Classification
303 - Social processes
8
302 - Social interaction
5
331 - Labor economics
2
338 - Production
2
384 - Communications; telecommunication
2
658 - General management
2
745 - Decorative arts
2
005 - Computer programming, programs & data
1
006 - Special computer methods
1
500 - Natural sciences & mathematics
1
620 - Engineering & allied operations
1