Bioggraphy of the Earth : its past, present and future.

MLA

Gamow, Georges. Bioggraphy of the Earth : Its Past, Present and Future. New York: The New American Library, 1952.

APA

Gamow, G. (1952). Bioggraphy of the Earth : its past, present and future. New York: The New American Library.

Chicago

Gamow, Georges Bioggraphy of the Earth: Its Past, Present and Future. New York: The New American Library, 1952.