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Wernher von Braun German-American space scientist, March 23, 1912--
Detroit : Gale Research, 1968Subjects:Format: Image
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Hermann J. Oberth German space scientist, June 25, 1894 -
Detroit : Gale Research, 1968Subjects:Format: Image
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Samuel Pierpont Langley American astronomer and airplane pioneer, Aug. 22, 1834 Feb 27, 1906.
Detroit : Gale Research, 1968Subjects:Format: Image
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