Classification
000 - Computer science, information & general works
330 - Economics
658 - General management
650 - Management & auxiliary services
3
153 - Mental processes & intelligence
2
302 - Social interaction
2
331 - Labor economics
2
338 - Production
2
381 - Commerce
2
384 - Communications; telecommunication
2
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
745 - Decorative arts
1
770 - Photography, photographs & computer art
1