APA (7th ed.) Citation

Heinlein, R. A., & Geary, C. N. (1962). Farmer in the sky. Victor Gollancz.

Chicago Style (17th ed.) Citation

Heinlein, Robert A., and Clifford N. Geary. Farmer in the Sky. London: Victor Gollancz, 1962.

MLA (9th ed.) Citation

Heinlein, Robert A., and Clifford N. Geary. Farmer in the Sky. Victor Gollancz, 1962.