Cita APA (7a ed.)

Grinnell, G. B. (1911). Trails of the pathfinders. C. Scribner's Sons.

Cita Chicago Style (17a ed.)

Grinnell, George Bird. Trails of the Pathfinders. New York: C. Scribner's Sons, 1911.

Cita MLA (8a ed.)

Grinnell, George Bird. Trails of the Pathfinders. C. Scribner's Sons, 1911.

Precaución: Estas citas no son 100% exactas.