Weber, Thomas P.
Frankfurt am Main: Fischer, 2005. 128 p.
Pringle, David
LEEDS: Leeds City Libraries, 1978. 24 p.
Tucker, Bob
Fantasy Digest 1(4) 9-10. March/April 1939.
Asimov, Isaac
in: Pohl, Frederik, ed. Nebula Winners Fourteen. New York: Harper, 1980; New York: Bantam, 1982. pp. 102-110.
Meluch, John
Villa Maria, PA: Center for Learning, 1997. 126pp.
Suvin, Darko
In: Darko Suvin. Parables of Freedom and Narrative Logics. Vol. 2, ed. by Eric D. Smith. New York: Peter Lang, 2021. p. 429-440. https://www.academia.edu/76555591/SCIENCE_FICTION_A_BASIC_SKETCH_1987_94_4_270_words_?email_work_card=view-paper
Vint, Sherryl
New York: Bloomsbury, 2014. 210 p.
Seed, David
New York: Oxford University Press, 2011. 147 p.
Lundwall, Sam J.
New York: Grossett and Dunlap, 1978 (c. 1977). 208 p.
Wheeler, Pat
New York: Continuum, 2005. 236 p.
Nagl, Manfred
Tubingen: Gunter Narr Verlag, 1982. 262 p.
Wuckel, Dieter
Hildesheim: Olms, 1982. 262pp.
Stockholm: Sveriges Radio, 1969. 187pp.
Weisburd, Mel
Coastlines 1(3):25-35. December 1955.
Bleiler, Everett F.
AB Bookman's Weekly 84(9):597-602. August 28, 1989. (Reprinted: 1990-1991 Booksman's Yearbook. Clifton, NJ: Bookman's Weekly, 1991. p. 3-7.)
Scholes, Robert
New York: Oxford University Press, 1977. 258 p.
Lindauer, Paul K.
Master's Thesis, Midwestern State University (Texas), 1998. 100pp. https://mwsu.userservices.exlibrisgroup.com/view/delivery/01MIDWST_INST/1284281800001261
Kent, OH: Kent State University Press, 1990. 998pp.
Taylor, Angus
Journal of Popular Culture 5(4):858-866. Spring 1972. https://www.academia.edu/37255314/Science_Fiction_The_Evolutionary_Context?email_work_card=view-paper
Lombardo, Thomas
Winchester, UK: Changemakers, 2019. 609 p.
Kent, OH: Kent State University Press, 1998. 730pp.
Rabkin, Eric S.
Springfield, VA: The Teaching Company, 1994. 2 videocassettes, 380 minutes. (Also available as 4 audiocassettes.)
Gunn, James E.
Nickelodeon No. 1: 28-32. 1975.
Westfahl, Gary
SFRA Review No. 203: 27-29. January/February 1993.
Lundwall, S. J.
New York: Ace Books, 1971. 256 p.
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