APA (7th ed.) Citation

Cook, W., & Kuehn, O. (1975). Texas-Colt: Roman. Ullstein.

Chicago Style (17th ed.) Citation

Cook, Will, and Otto Kuehn. Texas-Colt: Roman. Frankfurt/M. ; Berlin [u.a.]: Ullstein, 1975.

MLA (9th ed.) Citation

Cook, Will, and Otto Kuehn. Texas-Colt: Roman. Ullstein, 1975.