Biodiversity Heritage Library
By "Douglass, Earl, 1862-"
The Neocene lake beds of western Montana and descriptions of some new vertebrates from the Loup Fork
By: Douglass, Earl,
Publication info: [Missoula, Mont.] :The University,1899.
Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
The Tertiary of Montana /
By: Douglass, Earl, - Carnegie Museum.
Publication info: Pittsburgh :Published by the authority of the Board of Trustees of the Carnegie Institute,
Holding Institution: Harold B. Lee Library (archive.org)