Shapley, H. (1969). Through Rugged Ways to the Stars. New York: Charles Scribner's Sons.
Chicago Stili AlıntıShapley, Harlow. Through Rugged Ways to the Stars. New York: Charles Scribner's Sons, 1969.
MLA AlıntıShapley, Harlow. Through Rugged Ways to the Stars. New York: Charles Scribner's Sons, 1969.
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