APA (7th ed.) Zitazioa
Sire, J. W. (2014). Echoes of a voice: We are not alone. The Lutterworth Press.
Chicago Style (17th ed.) Zitazioa
Sire, James W. Echoes of a Voice: We Are Not Alone. Cambridge, England: The Lutterworth Press, 2014.
MLA (9th ed.) Zitazioa
Sire, James W. Echoes of a Voice: We Are Not Alone. The Lutterworth Press, 2014.
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