Cita APA (7a ed.)

Watson, L. (1976). Gifts of unknown things. Simon and Schuster.

Cita Chicago Style (17a ed.)

Watson, Lyall. Gifts of Unknown Things. New York: Simon and Schuster, 1976.

Cita MLA (9a ed.)

Watson, Lyall. Gifts of Unknown Things. Simon and Schuster, 1976.