Trails of the pathfinders /
by George Bird Grinnell.
Grinnell, G. Bird. (1911). Trails of the pathfinders. New York: C. Scribner's Sons.
Grinnell, George Bird, 1849-1938. Trails of the Pathfinders. New York: C. Scribner's Sons, 1911.
Warning: These citations may not always be complete (especially for serials).