Super Friends (1976 DC 1st Series) #7 VF-
Published Oct 1977 by DC.
"The Warning of the Wonder Twins." Superman's old enemy Grax plants 12 bombs on Earth. Starring Aquaman, Batman, Robin, Superman, Wonder Woman, Wendy, Marvin, Wonderdog, the Wonder Twins and Gleek (making their first comic book appearance), Hawkman, Flash, and Green Arrow. Script by E. Nelson Bridwell, pencils by Ramona Fradon, inks by Bob Smith. Cover by Fradon and Smith. Cover price $0.35.