Lektsii o rabote glavnykh pishchevaritelnykh zhelez.
- Pavlov, Ivan Petrovich, 1849-1936.
- Date:
- 1897
Licence: Public Domain Mark
Credit: Lektsii o rabote glavnykh pishchevaritelnykh zhelez. Source: Wellcome Collection.
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Licence: Public Domain Mark
Credit: Lektsii o rabote glavnykh pishchevaritelnykh zhelez. Source: Wellcome Collection.