Cashbaugh, Sean
Journal for the Study of Radicalism 10(1): 63-106. Spring 2016.
Webster, Bud
New York Review of Science Fiction 17(9): 14-15. May 2005. (Whole No. 201)
Ashley, Mike
Books Are Everything 4(2):58-61. June 1991. [No. 18]
Michel, John B.; Wollheim, Donald A.
New York: Committee for the Political Advancement of Science Fiction, 1938. 10 p. (Cf. OCLC No. 20010508)
Clareson, Thomas D.
Extrapolation 32(2): 109-110. Summer 1991
No authors listed.
Fantasy Times No. 150: 1, 3. March (2) 1952.
Locus No. 100:2. November 11, 1971.
Fantasy Times No. 255:1,7. September (2) 1956.
Fantasy Times No. 177: 5. May 1953.
Platt, Charles
in: Platt, Charles. Dream Makers: Volume II. New York: Berkley, 1983. pp. 229-238.
Locus 25(6):1, 68-71. December 1990.
Science Fiction Chronicle 12(3):14, 16. December 1990.
Science Fiction News (Australia) No. 113: 19-20. December 1990.
Lowndes, Robert W.
Science Fiction Fan 3(3): 5-10, 17. October 1938.
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