Classification
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365 - Penal & related institutions
1
382 - International commerce
1
394 - General customs
1
401 - Philosophy & theory
1
407 - Education, research & related topics
1
431 - German writing systems & phonology
1
432 - German etymology
1
450 - Italian, Romanian & related languages
1
481 - Classical Greek writing & phonology
1
490 - Other languages
1
577 - Ecology
1
616 - Diseases
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
621 - Applied physics
1
792 - Stage presentations
1
822 - English drama
1
909 - World history
1
914 - Geography of & travel in Europe
1
937 - Italy & adjacent territories to 476
1
940 - History of Europe
1