World Distributors, 1967 Series
 
Cover for Flash Gordon World Adventure Library (World Distributors, 1967 series) #1
Cover for Flash Gordon World Adventure Library (World Distributors, 1967 series) #2
Cover for Flash Gordon World Adventure Library (World Distributors, 1967 series) #3
Cover for Flash Gordon World Adventure Library (World Distributors, 1967 series) #4
Cover for Flash Gordon World Adventure Library (World Distributors, 1967 series) #5
Cover for Flash Gordon World Adventure Library (World Distributors, 1967 series) #6
Cover for Flash Gordon World Adventure Library (World Distributors, 1967 series) #7