Classification
330 - Economics
338 - Production
808 - Rhetoric & collections of literature
658 - General management
3
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
300 - Social sciences
1
302 - Social interaction
1
303 - Social processes
1
332 - Financial economics
1
384 - Communications; telecommunication
1
670 - Manufacturing
1