in Stålmannen (Centerförlaget, 1949 series) #21/1968 (1968)
in Supermann (Serieforlaget / Se-Bladene / Stabenfeldt, 1966 series) #6/1969 ([juni] 1969)
in Superman Supacomic (K. G. Murray, 1959 series) #164 (Circa April 1973)
in Superman from the Thirties to the Eighties (Crown Publishers, 1983 series) (1983)
On-sale date from copyright registration.

in Superman et Batman et Robin (Sage - Sagédition, 1969 series) #2 (février 1969) [Alternance de noir et blanc et de couleurs [Color pages alternate with black and white pages]], #5 (mai 1969) [page 5 case 1 [panel 1] (modifiée [edited])]
in Supermann (Serieforlaget / Se-Bladene / Stabenfeldt, 1966 series) #6/1969 ([juni] 1969)
in Superman Supacomic (K. G. Murray, 1959 series) #164 (Circa April 1973)Letters from Ned Barlow, David Alegi, Donald Glut (future comics and novel writer), Jeff Grossfield, Brian C. Pitts, and Tom Pagano.
in Superman et Batman et Robin (Sage - Sagédition, 1969 series) #2 (février 1969) [Alternance de noir et blanc et de couleurs [Color pages alternate with black and white pages]]