APA (7th ed.) Citation

Heinlein, R. A., & Geary, C. N. (1950). Farmer in the sky. Scribner.

Chicago Style (17th ed.) Citation

Heinlein, Robert A., and Clifford N. Geary. Farmer in the Sky. New York: Scribner, 1950.

MLA (9th ed.) Citation

Heinlein, Robert A., and Clifford N. Geary. Farmer in the Sky. Scribner, 1950.