Cita APA (7a ed.)

Young, R. S. (1966). Extraterrestrial biology. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Young, Richard S. Extraterrestrial Biology. New York: Holt, Rinehart and Winston, 1966.

Cita MLA (8a ed.)

Young, Richard S. Extraterrestrial Biology. Holt, Rinehart and Winston, 1966.