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Universal Decimal Classification. English full edition-Palaeontology
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Universal Decimal Classification. English full edition-Biological sciences in general. Virology. Microbiology
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Universal Decimal Classification. English full edition-Zoology
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Universal Decimal Classification. Second English full edition-Applied sciences in general. Inventions and discoveries
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Universal Decimal Classification. English full edition-Hygiene generally. Personal health and hygiene
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Universal Decimal Classification. English full edition-Public health. Accident prevention
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Universal Decimal Classification. English full edition-Pathology
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Universal Decimal Classification. English full edition-Orthopaedics. Surgery. Ophthalmology
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Universal Decimal Classification. English full edition-Gynaecology. Obstetrics
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