Classification
331 - Labor economics
374 - Adult education
19
384 - Communications; telecommunication
18
000 - Computer science, information & general works
16
004 - Data processing & computer science
12
658 - General management
9
005 - Computer programming, programs & data
3
500 - Natural sciences & mathematics
2
620 - Engineering & allied operations
2
621 - Applied physics
1
745 - Decorative arts
1