Classification
330 - Economics
5
380 - Commerce, communications & transportation
384 - Communications; telecommunication
5
500 - Natural sciences & mathematics
5
620 - Engineering & allied operations
5
808 - Rhetoric & collections of literature
3
004 - Data processing & computer science
2
331 - Labor economics
2
745 - Decorative arts
2
000 - Computer science, information & general works
1
006 - Special computer methods
1
381 - Commerce
1
621 - Applied physics
1