in Supermann (Williams Forlag, 1969 series) #16/1970 (August 1970)
in The Justice League of America Archives (DC, 1992 series) #9 ([November] 2004), #9 ([November] 2004), #9 ([November] 2004)Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. [July 2007].
in Supermann (Williams Forlag, 1969 series) #16/1970 (August 1970)
in The Justice League of America Archives (DC, 1992 series) #9 ([November] 2004)Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (May 2007).