by Frederik Pohl, Arthur C. Clarke, O. R. Frisch , William Morrison, George Gamow, Isaac Asimov, W. Grey Walter, Robert J. Wiley, Philip Latham, Chandler Davis, Fred Hoyle, Boyd Ellanby, W. Norbert, Lee Gregor, Lee Corey, George Oliver Smith, Leo Szilard
1962
by W. A. Cobb, G. D. Greville, M. E. Heppenstall, D. Hill, W. Grey Walter, D. Whitteridge, Denis Hill & Geoffrey Parr
1950
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