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Astounding Science Fiction, July 1940 by L. Sprague de Camp, John W. Campbell Jr., Lester del Rey, Robert Moore Williams, J.B. Ryan, Norman L. Knight, Robert A. Heinlein, Ralph Williams, L. Ron Hubbard

Astounding Science Fiction, July 1940

Future History or Heinlein Timeline #20

L. Sprague de Camp, John W. Campbell Jr., Lester del Rey, Robert Moore Williams, J.B. Ryan, Norman L. Knight, Robert A. Heinlein, Ralph Williams, L. Ron Hubbard

160 pages • first pub 1940 (editions)

fiction science fiction adventurous challenging informative slow-paced
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