Classification
004 - Data processing & computer science
3
005 - Computer programming, programs & data
3
006 - Special computer methods
2
320 - Political science
2
330 - Economics
3
331 - Labor economics
1
333 - Economics of land & energy
3
340 - Law
3
374 - Adult education
1
384 - Communications; telecommunication
1
509 - Historical, geographic & persons treatment
1
510 - Mathematics
1
511 - General principles of mathematics
1
550 - Earth sciences
2
572 - Biochemistry
1
577 - Ecology
4
612 - Human physiology
2
620 - Engineering & allied operations
1
621 - Applied physics
1
630 - Agriculture & related technologies
1
641 - Food & drink
3
650 - Management & auxiliary services
2
664 - Food technology
3
808 - Rhetoric & collections of literature
1
910 - Geography & travel
1
930 - History of ancient world to ca. 499
1