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The first issue of Worlds of Tomorrow was cover-dated April 1963

Worlds of Tomorrow was an American science fiction magazine published from 1963 to 1967, at which point it was merged into If. It briefly resumed publication in 1970 and 1971. The magazine was edited by Frederik Pohl in its first period of publication, and by Ejler Jakobsson in the second. It has published fiction by such noted authors as Arthur C. Clarke, Larry Niven, Fritz Leiber, Philip K. Dick, Brian W. Aldiss, Jack Williamson and Philip José Farmer.


  • Clute, John; Nicholls, Peter, eds. (1993). The Encyclopedia of Science Fiction. London: Orbit Books. p. 1348. ISBN 978-1-85723-124-3.
  • "Worlds of Tomorrow". Internet Speculative Fiction Database. Retrieved April 19, 2009.

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