Classification
300 - Social sciences
900 - History & geography
26
800 - Literature & rhetoric
22
320 - Political science
6
100 - Philosophy & psychology
4
410 - Linguistics
4
700 - The arts; fine & decorative arts
4
330 - Economics
3
200 - Religion
2
301 - Sociology & anthropology
2
333 - Economics of land & energy
2
400 - Language
2
658 - General management
2
770 - Photography, photographs & computer art
2
780 - Music
2
000 - Computer science, information & general works
1
006 - Special computer methods
1
028 - Reading & use of other information media
1
140 - Specific philosophical schools
1
297 - Islam, Babism & Bahai Faith
1
302 - Social interaction
1
304 - Factors affecting social behavior
1
331 - Labor economics
1
340 - Law
1
370 - Education
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
398 - Folklore
1
500 - Natural sciences & mathematics
1
530 - Physics
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
720 - Architecture
1