APA (7th ed.) Zitazioa
Webb, W. (2012). Understanding Weightless. Cambridge University Press.
Chicago Style (17th ed.) Zitazioa
Webb, William. Understanding Weightless. Cambridge: Cambridge University Press, 2012.
MLA (9th ed.) Zitazioa
Webb, William. Understanding Weightless. Cambridge University Press, 2012.
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