APA (7th ed.) Citation

Heinlein, R. A., & Geary, C. N. (1949). Red planet: A colonial boy on Mars. Scribner's Sons.

Chicago Style (17th ed.) Citation

Heinlein, Robert Anson, and Clifford N. Geary. Red Planet: A Colonial Boy on Mars. New York: Scribner's Sons, 1949.

MLA (9th ed.) Citation

Heinlein, Robert Anson, and Clifford N. Geary. Red Planet: A Colonial Boy on Mars. Scribner's Sons, 1949.