All but Superman inset images.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
House ad for DC Special Series (DC, 1977 series) #1 [5 Star Super-Hero Spectacular], on sale June 16; using some lettering of Ira Schnapp (possibly traced) from his early 1960's Justice League of America house ads.
letters from Bob Rodi, Tonie Nichols
panels reprinted from Justice League of America (DC, 1960 series) #45