APA (7th ed.) Citation

Martin, G. R. R., & Dozois, G. R. (2013). Old Mars. Bantam Books.

Chicago Style (17th ed.) Citation

Martin, George R. R., and Gardner R. Dozois. Old Mars. New York: Bantam Books, 2013.

MLA (9th ed.) Citation

Martin, George R. R., and Gardner R. Dozois. Old Mars. Bantam Books, 2013.