^ 1.01.1"A Two-Minute History of the Pulps", in The Adventure House Guide to the Pulps, edited by Doug Ellis, John Locke, and John Gunnison. Silver Spring, MD, Adventure House, 2000. (p. ii–iv).
^See Lee Server, Encyclopedia of Pulp Fiction Writers (2002), pg.131.
^Reynolds, Quentin. The Fiction Factory ; Or, From Pulp Row to Quality Street: The Story of 100 Years of Publishing at Street & Smith. Random House,1955. (Covers: Street & Smith, Nick Carter, Max Brand, Buffalo Bill, Frank Merriwell, Gerald Smith, Richard Duffy, Frederick Faust, dime novel, Horatio Alger, Henry Ralston, Ned Buntline, Ormond Smith, Beadle's, Edward Stratemeyer, detective fiction, Laura Jean Libbey, Astounding Science Fiction, Edith Evans)
^Hulse, Ed. (2009) "The Big Four (Plus One)" in The Blood 'n' Thunder Guide to Collecting Pulps. Murania Press, ISBN0-9795955-0-9 (pp.19–47).
^Ashley, Michael (2006). The Age of the Storytellers: British Popular Fiction Magazines,1880–1950. British Library. ISBN1-58456-170-X
^"Orchideengarten, Der". in: M.B. Tymn and Mike Ashley, Science Fiction, Fantasy, and Weird Fiction Magazines. Westport: Greenwood,1985. pp. 866. ISBN0-313-21221-X
^Ashley , Michael. The history of the science-fiction magazine: the story of the science-fiction magazines from 1950 to 1970, Transformations, Volume 2 (2005), pg. 3 ISBN978-0-85323-779-2
^Haining, Peter. The Fantastic Pulps. Vintage Books, a division of Random House. 1975. ISBN 0-394-72109-8.