Classification
001 - Knowledge
330 - Economics
4
658 - General management
3
005 - Computer programming, programs & data
2
670 - Manufacturing
2
006 - Special computer methods
1
153 - Mental processes & intelligence
1
162 - Deduction
1
300 - Social sciences
1
338 - Production
1
384 - Communications; telecommunication
1
602 - Miscellany
1