Cita APA (7a ed.)

Dick, S. J. (1996). The biological universe: : The twentieth-century extraterrestrial life debate and the limits of science. University Press.

Cita Chicago Style (17a ed.)

Dick, Steven J. The Biological Universe: : The Twentieth-century Extraterrestrial Life Debate and the Limits of Science. Cambridge: University Press, 1996.

Cita MLA (9a ed.)

Dick, Steven J. The Biological Universe: : The Twentieth-century Extraterrestrial Life Debate and the Limits of Science. University Press, 1996.

Precaución: Estas citas no son 100% exactas.