Hawgood, John Arkas, 1905- America's western frontiers; : the exploration and settlement of the Trans-Mississippi West [electronic resource] / [by] John A. Hawgood.. — [1st American ed.]. — New York, : Knopf,, 1967.. — xxiii, 440, x p. : illus., facsims., maps, ports. 25 cm.
"Published in slightly different form in Great Britain as The American West."
Bibliographical footnotes. "Bibliographic note": p. 422-440.