APA (7th ed.) Citation

Armstrong, Z. (1950). Who discovered America?: The amazing story of Madoc. Lookout Pub. Co..

Chicago Style (17th ed.) Citation

Armstrong, Zella. Who Discovered America?: The Amazing Story of Madoc. Chattanooga, Tenn.: Lookout Pub. Co., 1950.

MLA (9th ed.) Citation

Armstrong, Zella. Who Discovered America?: The Amazing Story of Madoc. Lookout Pub. Co., 1950.