Classification
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581 - Specific topics in natural history
8
153 - Mental processes & intelligence
7
338 - Production
7
612 - Human physiology
7
650 - Management & auxiliary services
7
303 - Social processes
6
770 - Photography, photographs & computer art
6
001 - Knowledge
5
170 - Ethics
5
514 - Topology
5
615 - Pharmacology & therapeutics
5
780 - Music
5
910 - Geography & travel
5
120 - Epistemology, causation & humankind
4
160 - Logic
4
304 - Factors affecting social behavior
4
542 - Techniques, equipment & materials
4
791 - Public performances
4
302 - Social interaction
3
381 - Commerce
3
657 - Accounting
3
670 - Manufacturing
3
361 - Social problems & social welfare in general
2
371 - Schools & their activities; special education
2
502 - Miscellany
2
520 - Astronomy & allied sciences
2
541 - Physical chemistry
2
660 - Chemical engineering
2
794 - Indoor games of skill
2
011 - Bibliographies
1
150 - Psychology
1
174 - Occupational ethics
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
323 - Civil & political rights
1
336 - Public finance
1
342 - Constitutional & administrative law
1
364 - Criminology
1
374 - Adult education
1
507 - Education, research & related topics
1
531 - Classical mechanics; solid mechanics
1
537 - Electricity & electronics
1
547 - Organic chemistry
1
571 - Physiology & related subjects
1
575 - Specific parts of & systems in plants
1
668 - Technology of other organic products
1
781 - General principles & musical forms
1
809 - History, description & criticism
1
920 - Biography, genealogy & insignia
1