De ranis fossilibus / Joh. Petrus Eckerbom Eckerbom, Johan Peter. creator text book Lundae typis Berlingianis 1787 1787
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LAT Diss.--Lund, Joh. Petrus Eckerblom, respondent and author. Amphibians, Fossil Fossils Frogs Museum of Comparative Zoology--Biodiversity Heritage Library digitization project https://www.biodiversitylibrary.org/bibliography/4935 82293870 10.5962/bhl.title.4935 HMZ