APA (7th ed.) Citation

Philip Morris Incorporated. (1975). The great trails of the Oldwest: And the men who rode them. Philip Morris Incorporated.

Chicago Style (17th ed.) Citation

Philip Morris Incorporated. The Great Trails of the Oldwest: And the Men Who Rode Them. [New York?]: Philip Morris Incorporated, 1975.

MLA (9th ed.) Citation

Philip Morris Incorporated. The Great Trails of the Oldwest: And the Men Who Rode Them. Philip Morris Incorporated, 1975.