Classification
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149 - Other philosophical systems
1
233 - Humankind
1
261 - Social theology
1
324 - The political process
1
339 - Macroeconomics & related topics
1
340 - Law
1
363 - Other social problems & services
1
364 - Criminology
1
380 - Commerce, communications & transportation
1
400 - Language
1
410 - Linguistics
1
414 - Phonology & phonetics
1
509 - Historical, geographic & persons treatment
1
519 - Probabilities & applied mathematics
1
534 - Sound & related vibrations
1
570 - Life sciences; biology
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
609 - Historical, geographic & persons treatment
1
610 - Medicine & health
1
615 - Pharmacology & therapeutics
1
616 - Diseases
1
630 - Agriculture & related technologies
1
741 - Drawing & drawings
1
777 - [Unassigned]
1
786 - Keyboard & other instruments
1
792 - Stage presentations
1
820 - English & Old English literatures
1
830 - Literatures of Germanic languages
1
841 - French poetry
1
848 - French miscellaneous writings
1
896 - African literatures
1
910 - Geography & travel
1
927 - (Optional number)
1
940 - History of Europe
1
973 - United States
1