North, J. (1995). The Norton history of Astronomy and cosmology. New York: W.W.Norton & Company.
Čikaški stil citiranjaNorth, John. The Norton History of Astronomy and Cosmology. New York: W.W.Norton & Company, 1995.
MLA način citiranjaNorth, John. The Norton History of Astronomy and Cosmology. New York: W.W.Norton & Company, 1995.
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