Classification
000 - Computer science, information & general works
1
001 - Knowledge
005 - Computer programming, programs & data
2
140 - Specific philosophical schools
1
300 - Social sciences
4,006
302 - Social interaction
1
330 - Economics
5
331 - Labor economics
5
338 - Production
1
361 - Social problems & social welfare in general
1
384 - Communications; telecommunication
1
500 - Natural sciences & mathematics
4
604 - Special topics
1
610 - Medicine & health
4
620 - Engineering & allied operations
1
658 - General management
6
745 - Decorative arts
2
800 - Literature & rhetoric
1
830 - Literatures of Germanic languages
1
900 - History & geography
1