Booker, M. Keith; Thomas, Anne-Marie (2009). The Science Fiction Handbook. Blackwell Guides to Literature Series. John Wiley & Sons. стр. 155. ISBN978-1-4051-6205-0. „Sometimes called the 'dean of science fiction writers,' Robert A. Heinlein was one of the leading figures of science fiction's Golden Age and one of the writers most responsible for establishing the science fiction novel as a publishing category.”