Rovin, Jeff. The encyclopedia of superheroes / Jeff Rovin. - New York, NY : Facts on File, c1985. - xi, 443 p. [32] p. of leaves : ill. (some col.) ; 29 cm. Includes index. ISBN: 0816011680 LCCN: 85010329 Subjects--Topical Terms: Heroes in mass media--Dictionaries. Dewey Class. No.: 001.51 / ROE 1985