By A Mystery Man Writer
Superman, Wonder Woman and The Hulk Underoos in 1979
Underoos (1979) : r/vintageads
Underoos - Canada
WONDER WOMAN Values - MAVIN
UBC Press Hot Pants and Spandex Suits - Gender Representation in American Superhero Comic Books, By Esther De Dauw
Super Saturday: 'Spider-Woman' 1979 - Marvel's Copyright-Driven Creation
DC VS MARVEL: UNDEROOS, Comic books in the media Wiki
Superhero, Definition, Names, Movies, History, & Facts
The Secret History of Underoos
Comics 411: A Look at Intercompany Crossover Events
1980 Ad Die-Cast Superheroes Ad Spider-Man Hulk, Batman, Superman, Underoos
Hero-A-Go-Go! by TwoMorrows Publishing - Issuu
On-Screen Superheroes: Then and Now Hulk 1978 and 2012 Wolverine 2000 and 2013 The Amazing Spider-Man 1977 and 2016 Captain America 1990 and 2016 Thor 1978 and 2013 Batman 1943 and 2016