Classification
620 - Engineering & allied operations
13
330 - Economics
11
570 - Life sciences; biology
11
296 - Judaism
10
378 - Higher education
10
900 - History & geography
10
305 - Social groups
9
519 - Probabilities & applied mathematics
9
000 - Computer science, information & general works
8
005 - Computer programming, programs & data
8
020 - Library & information sciences
8
500 - Natural sciences & mathematics
8
629 - Other branches of engineering
8
300 - Social sciences
7
380 - Commerce, communications & transportation
7
001 - Knowledge
6
003 - Systems
6
320 - Political science
6
973 - United States
6
006 - Special computer methods
5
370 - Education
5
636 - Animal husbandry
5
658 - General management
5
940 - History of Europe
5
004 - Data processing & computer science
4
200 - Religion
4
306 - Culture & institutions
4
700 - The arts; fine & decorative arts
4
791 - Public performances
4
800 - Literature & rhetoric
4
809 - History, description & criticism
4
895 - Literatures of East & Southeast Asia
4
025 - Library operations
3
332 - Financial economics
3
333 - Economics of land & energy
3
338 - Production
3
531 - Classical mechanics; solid mechanics
3
610 - Medicine & health
3
621 - Applied physics
3
641 - Food & drink
3
664 - Food technology
3
869 - Portuguese literature
3
028 - Reading & use of other information media
2
050 - General serial publications
2
100 - Philosophy & psychology
2
174 - Occupational ethics
2
210 - Philosophy & theory of religion
2
327 - International relations
2
340 - Law
2
371 - Schools & their activities; special education
2
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