© 1963 by National Periodical Publications, Inc.
Writer credit from Martin O'Hearn at http://martinohearn.blogspot.com/
in Rommets Helter (Se-Bladene, 1965 series) #3/1966 ([august] 1966)
in Showcase Presents: Martian Manhunter (DC, 2007 series) #2 ([May] 2009)Script credit provided by Bob Hughes, May 2009.
in Lynvingen (Semic, 1977 series) #7/1978 (uke 34 1978)