Classification
005 - Computer programming, programs & data
23
004 - Data processing & computer science
18
500 - Natural sciences & mathematics
13
621 - Applied physics
6
006 - Special computer methods
5
025 - Library operations
3
000 - Computer science, information & general works
2
620 - Engineering & allied operations
2
658 - General management
2
003 - Systems
1
381 - Commerce
1
384 - Communications; telecommunication
1
670 - Manufacturing
1
690 - Buildings
1