APA (7th ed.) Zitazioa
Van Helden, A. (1985). Measuring the universe: Cosmic dimensions from Aristarchus to Halley. University of Chicago Press.
Chicago Style (17th ed.) Zitazioa
Van Helden, Albert. Measuring the Universe: Cosmic Dimensions from Aristarchus to Halley. Chicago: University of Chicago Press, 1985.
MLA (9th ed.) Zitazioa
Van Helden, Albert. Measuring the Universe: Cosmic Dimensions from Aristarchus to Halley. University of Chicago Press, 1985.
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