Classification
330 - Economics
150
331 - Labor economics
112
004 - Data processing & computer science
106
384 - Communications; telecommunication
68
658 - General management
33
620 - Engineering & allied operations
26
621 - Applied physics
25
374 - Adult education
19
500 - Natural sciences & mathematics
18
000 - Computer science, information & general works
12
005 - Computer programming, programs & data
10
745 - Decorative arts
10
338 - Production
4
600 - Technology
4
650 - Management & auxiliary services
4
006 - Special computer methods
2
011 - Bibliographies
2
302 - Social interaction
2
381 - Commerce
2
510 - Mathematics
2
001 - Knowledge
1
003 - Systems
1
300 - Social sciences
1
342 - Constitutional & administrative law
1
380 - Commerce, communications & transportation
1
670 - Manufacturing
1