Classification
500 - Natural sciences & mathematics
5
005 - Computer programming, programs & data
4
745 - Decorative arts
3
006 - Special computer methods
2
330 - Economics
2
620 - Engineering & allied operations
2
820 - English & Old English literatures
2
840 - Literatures of Romance languages
2
000 - Computer science, information & general works
1
004 - Data processing & computer science
1
025 - Library operations
1
320 - Political science
1
331 - Labor economics
1
347 - Civil procedure & courts
1
384 - Communications; telecommunication
1
658 - General management
1
841 - French poetry
1
940 - History of Europe
1