Παραπομπή APA

Van Helden, A. (1985). Measuring the universe: Cosmic dimensions from Aristarchus to Halley. Chicago: The University of Chicago Press.

Παραπομπή Chicago Style

Van Helden, Albert. Measuring the Universe: Cosmic Dimensions From Aristarchus to Halley. Chicago: The University of Chicago Press, 1985.

Παραπομπή MLA

Van Helden, Albert. Measuring the Universe: Cosmic Dimensions From Aristarchus to Halley. Chicago: The University of Chicago Press, 1985.

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