Carter, Paul A. The Creation of Tomorrow: Fifty Years of Magazine Science Fiction
Comments: Two chapters contain connections to alternate history: "The Fate Changer: Human Destiny and the Time Machine" includes short discussion of some change-the-past stories, e.g., Moore's Bring the Jubilee and Ryan's "The Mosaic". "The Phantom Dictator: Science Fiction Discovers Hitler" includes short discussion of some World War II-related alternate history stories, e.g., Dick's The Man in the High Castle and Mullally's Hitler Has Won.
Published: Columbia University 1977 (0231042108).