Classification
000 - Computer science, information & general works
39
004 - Data processing & computer science
16
005 - Computer programming, programs & data
6
300 - Social sciences
3
330 - Economics
9
331 - Labor economics
10
338 - Production
9
384 - Communications; telecommunication
1
500 - Natural sciences & mathematics
18
620 - Engineering & allied operations
7
658 - General management
27