in Century, The 100 Page Comic Monthly (K. G. Murray, 1956 series) #11 ([April 1957])
in Superboy (DC, 1949 series) #174 (June 1971)
in 80 Page Giant (DC, 1964 series) #G83 (May-June 1971)The reprint in Superboy 174 includes a hypen in the title (Super-Zoo).
text page
in Adventure Comics (DC, 1938 series) #320 (May 1964)Bob Bailey credited the script to Otto Binder, 30 January 2005; Bob Hughes suggested Jerry Coleman, March 2009. Bob Bailey credited the inks to John Fischetti, 30 January 2005; Bob Hughes suggested John Giunta, March 2009.