Classification
025 - Library operations
500 - Natural sciences & mathematics
81
658 - General management
47
331 - Labor economics
22
381 - Commerce
19
745 - Decorative arts
18
338 - Production
10
330 - Economics
9
519 - Probabilities & applied mathematics
8
300 - Social sciences
7
302 - Social interaction
6
384 - Communications; telecommunication
6
620 - Engineering & allied operations
6
001 - Knowledge
3
011 - Bibliographies
3
006 - Special computer methods
2
659 - Advertising & public relations
2
770 - Photography, photographs & computer art
2
005 - Computer programming, programs & data
1
364 - Criminology
1
621 - Applied physics
1