APA (7th ed.) Citation

Mellard, R. (1940). Hills and horizons: Pioneering the Big Bend country of Texas. The Naylor company.

Chicago Style (17th ed.) Citation

Mellard, Rudolph. Hills and Horizons: Pioneering the Big Bend Country of Texas. San Antonio, Tex.: The Naylor company, 1940.

MLA (9th ed.) Citation

Mellard, Rudolph. Hills and Horizons: Pioneering the Big Bend Country of Texas. The Naylor company, 1940.