The American beaver and his works Morgan, Lewis Henry, 1818-1881 creator text book Philadelphia J.B. Lippincott 1868 1868
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ENG Tables. Beavers FC 02 0203 no. 29620 AEU 599.3232 CIHM/ICMH microfiche series, no. 29620 https://www.biodiversitylibrary.org/bibliography/45929 317762980 10.5962/bhl.title.45929 CaOOCIHM