"Batman created by Bob Kane ; Superman created by Jerry Siegel and Joe Shuster ; Wonder Woman created by William Moulton Marston ; Aquaman created by Paul Norris ; Adam Strange, The Atom, Dr. Fate and Hawkman created by Gardner Fox, Martian Manhunter created by Joe Samachson and Joe Certa ; Metamorpho created by Bob Haney and Ramona Fradon"--T.p. verso.
"Originally published in single magazine form in Secret origins, 80-page giant 8 (more secret origins), Even more secret origins and Weird secret origins"--T.p. verso.