Beschreibung der Vindicator-Mine in Cripple Creek und der Behandlung der Golderze in Staate Colorado. U. S. A. Bergmännische Arbeit zur Erlangung des Ingenieur-Diploms an der königlich Preussischen Bergakemie zu Clausthal eingereicht

Bergingenieurdiploms--Preussische Bergakademie zu Clausthal i Harz. 1904.

John and Sebastian Cabot; the discovery of North America,

Mode of access: Internet.

STS 26 : flight of Discovery : NASA & U.S. industry explore America's new economic frontier.

"8/88."

The status of the beavers of western North America with a consideration of the factors in their speciation ...

Pub. also as University of California publications in zoology, v. 12, no. 15, March 20, 1916.

Hudson Bay; or, Everyday life in the wilds of North America, during six years' residence in the territories of the Hon. Hudson Bay Company.

First edition, Edinburgh, 1848.

Wildlife in North America.

Mode of access: Internet.

Later Tertiary Leporidae of North America.

University of Kansas publications.

Early American fiction, 1774-1830 : a compilation of the titles of works of fiction written by writers born or residing in North America, and printed previous to 1931.

"The edition of this work is limited to one hundred and two copies."

The marine shells of the west coast of North America ...

Mode of access: Internet.