APA (7th ed.) Citation

Stephens, R. W. (1970). August Buchel, Texan soldier of fortune. [publisher not identified].

Chicago Style (17th ed.) Citation

Stephens, Robert W. August Buchel, Texan Soldier of Fortune. [Dallas? Tex.]: [publisher not identified], 1970.

MLA (9th ed.) Citation

Stephens, Robert W. August Buchel, Texan Soldier of Fortune. [publisher not identified], 1970.