Cita APA (7a ed.)

Gamow, G. (1956). Biography of the earth: Its past, present and future. The new American library.

Cita Chicago Style (17a ed.)

Gamow, George. Biography of the Earth: Its Past, Present and Future. [New York]: The new American library, 1956.

Cita MLA (9a ed.)

Gamow, George. Biography of the Earth: Its Past, Present and Future. The new American library, 1956.