APA (7th ed.) Citation

Langworth, R. M. (1989). 50 years of American automobiles, 1939-1989. Beekman House.

Chicago Style (17th ed.) Citation

Langworth, Richard M. 50 Years of American Automobiles, 1939-1989. New York: Beekman House, 1989.

MLA (9th ed.) Citation

Langworth, Richard M. 50 Years of American Automobiles, 1939-1989. Beekman House, 1989.