Classification
000 - Computer science, information & general works
10
374 - Adult education
10
384 - Communications; telecommunication
9
331 - Labor economics
8
330 - Economics
2
338 - Production
2
500 - Natural sciences & mathematics
2
620 - Engineering & allied operations
2
621 - Applied physics
2
745 - Decorative arts
2
004 - Data processing & computer science
1