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Autores/as cuyas obras están en dominio público en al menos una jurisdicción

Lista de obras de Ray S. Bassler

A synopsis of American fossil Bryozoa, including bibliography and synonymy ⬇️

Washington, Govt. Print. Off., 1900.

Bibliographic index of American Ordovician and Silurian fossils ⬇️

Washington, Govt. Print. Off., 1915.

North American early Tertiary Bryozoa ⬇️

Washington, Government Printing Office, 1920.

Cambrian and Ordovician ⬇️

volume 7 of the book series Maryland geological survey

Upper Cretaceous ⬇️

volume 6 (in two parts) of the book series Maryland geological survey

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