Citizen of the Galaxy is a science fiction novel by American writer Robert A. Heinlein, originally serialized in Astounding Science Fiction (September, October, November, December 1957) and published in hardcover in 1957 as one of the Heinlein juveniles by Scribner's. Though influenced by Rudyard Kipling's Kim, the novel, like many of Heinlein's, may also have been influenced by the author's background in and nostalgia for the U.S. Navy.
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