APA (7th ed.) Citation

Mason, D. R. (1969). Moons of Triopus. Paperback Library.

Chicago Style (17th ed.) Citation

Mason, Douglas R. Moons of Triopus. New York: Paperback Library, 1969.

MLA (9th ed.) Citation

Mason, Douglas R. Moons of Triopus. Paperback Library, 1969.