Classification
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509 - Historical, geographic & persons treatment
6
572 - Biochemistry
6
577 - Ecology
6
770 - Photography, photographs & computer art
6
791 - Public performances
6
820 - English & Old English literatures
6
907 - Education, research & related topics
6
946 - Iberian Peninsula & adjacent islands
6
005 - Computer programming, programs & data
5
006 - Special computer methods
5
030 - General encyclopedic works
5
070 - News media, journalism & publishing
5
152 - Perception, movement, emotions & drives
5
153 - Mental processes & intelligence
5
155 - Differential & developmental psychology
5
282 - Roman Catholic Church
5
343 - Military, tax, trade & industrial law
5
368 - Insurance
5
371 - Schools & their activities; special education
5
401 - Philosophy & theory
5
415 - Grammar
5
430 - Germanic languages; German
5
523 - Specific celestial bodies & phenomena
5
950 - History of Asia; Far East
5
002 - The book
4
120 - Epistemology, causation & humankind
4
128 - Humankind
4
193 - Philosophy of Germany & Austria
4
202 - Doctrines
4
294 - Religions of Indic origin
4
299 - Religions not provided for elsewhere
4
336 - Public finance
4
381 - Commerce
4
518 - Numerical analysis
4
526 - Mathematical geography
4
539 - Modern physics
4
541 - Physical chemistry
4
550 - Earth sciences
4
614 - Incidence & prevention of disease
4
707 - Education, research & related topics
4
708 - Galleries, museums & private collections
4
724 - Architecture from 1400
4
759 - Historical, geographic & persons treatment
4
910 - Geography & travel
4
133 - Specific topics in parapsychology & occultism
3
181 - Eastern philosophy
3
192 - Philosophy of British Isles
3
201 - Religious mythology & social theology
3
248 - Christian experience, practice & life
3
322 - Relation of state to organized groups
3
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