in Lynvingen (Se-Bladene, 1966 series) #6/1968 ([juni] 1968)
in Superman (Egmont Ehapa, 1966 series) #17/1968 (14.August 1968)
in Millennium Edition: Detective Comics 359 (DC, 2000 series) #[nn] (October 2000)
in Showcase Presents: Batgirl (DC, 2007 series) #1 (2007)
in Showcase Presents Batman (DC, 2006 series) #3 ([July] 2008)Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (October 2007).
in Superman (Egmont Ehapa, 1966 series) #17/1968 (14.August 1968)
in Batman (DC, 1940 series) #208 (January-February 1969) [partial reprint]
in 80 Page Giant (DC, 1964 series) #G55 (January-February 1969)
in Batman from the Thirties to the Seventies (Crown Publishers, 1971 series) #73-168329 (October 1971)
in DC Special Blue Ribbon Digest (DC, 1980 series) #9 (May 1981)
in Millennium Edition: Detective Comics 359 (DC, 2000 series) #[nn] (October 2000)
in Showcase Presents: Batgirl (DC, 2007 series) #1 (2007)
in Showcase Presents Batman (DC, 2006 series) #3 ([July] 2008)Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Thanks to Tony Boyless from Fayetteville, N.C.
in 100-Page Super Spectacular (DC, 1973 series) #DC-22 (November 1973)
in Millennium Edition: Detective Comics 359 (DC, 2000 series) #[nn] (October 2000)
in Showcase Presents The Elongated Man (DC, 2006 series) #1 ([July] 2006)Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (April 2007). Script previously credited to John Broome.
Letters of comment from Paul Seydor, Frank Klein, Mark Evanier and Rick Wood.