Classification
330 - Economics
25
331 - Labor economics
25
338 - Production
25
384 - Communications; telecommunication
658 - General management
9
004 - Data processing & computer science
8
500 - Natural sciences & mathematics
8
005 - Computer programming, programs & data
4
006 - Special computer methods
4
302 - Social interaction
4
381 - Commerce
4
621 - Applied physics
4
745 - Decorative arts
4
620 - Engineering & allied operations
3
374 - Adult education
2
000 - Computer science, information & general works
1
300 - Social sciences
1
380 - Commerce, communications & transportation
1
670 - Manufacturing
1