World Distributors, 1967? Series
 
Cover for Undercover (World Distributors, 1967 ? series) #47
Cover for Undercover (World Distributors, 1967 ? series) #48
Cover for Undercover (World Distributors, 1967 ? series) #49
Cover for Undercover (World Distributors, 1967 ? series) #52
Cover for Undercover (World Distributors, 1967 ? series) #53
Cover for Undercover (World Distributors, 1967 ? series) #54
Cover for Undercover (World Distributors, 1967 ? series) #57
Cover for Undercover (World Distributors, 1967 ? series) #58
Cover for Undercover (World Distributors, 1967 ? series) #61
Cover for Undercover (World Distributors, 1967 ? series) #62
Cover for Undercover (World Distributors, 1967 ? series) #67
Cover for Undercover (World Distributors, 1967 ? series) #70
Cover for Undercover (World Distributors, 1967 ? series) #72
Cover for Undercover (World Distributors, 1967 ? series) #75
Cover for Undercover (World Distributors, 1967 ? series) #76