ebrary, Inc, & Vakoch, D. A. (2011). Communication with extraterrestrial intelligence. State University of New York Press.
Cita Chicago (17th ed.)ebrary, Inc, i Douglas A. Vakoch. Communication with Extraterrestrial Intelligence. Albany: State University of New York Press, 2011.
Cita MLA (9th ed.)ebrary, Inc, i Douglas A. Vakoch. Communication with Extraterrestrial Intelligence. State University of New York Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.