'Literary Sources of D and D'

Here is the list presented in the 1st edition Dungeon Master's Guide, as one of the many appendixes;

Anderson, Poul. Three Hearts and Three Lions; The High Crusade; The Broken Sword
Bellairs, John. The Face in the Frost
Brackett, Leigh. Entire body of work
Brown, Fredric. Entire body of work
Burroughs, Edgar Rice. Pellucidar series; Mars series; Venus series
Carter, Lin. World's End series
de Camp, L. Sprague. Lest Darkness Fall; Fallible Fiend, et al.
de Camp, L. Sprague, and Fletcher Pratt. Harold Shea series; Carnelian Cube
Derleth, August. Entire body of work
Dunsany, Lord. Entire body of work
Farmer, Philip Jose. The World of the Tiers series, et al.
Fox, Gardner. Kothar series; Kyrik series, et al.
Howard, Robert E. Conan series
Lanier, Sterling. Hiero's Journey
Lieber, Fritz. Fafhrd & Gray Mouser series (a.k.a. Lankhmar series), et al.
Lovecraft, H.P. Entire body of work, especially his Cthulhu series
Merritt, A. Creep, Shadow, Creep; Moon Pool; Dwellers in the Mirage, et al.
Moorcock, Michael. Stormbringer, Stealer of Souls; Hawkmoon series (especially the first three books)
Norton, Andre. Entire body of work
Offutt, Andrew J., editor. Swords Against Darkness III
Pratt, Fletcher. Blue Star, et al.
Saberhagen, Fred. Changeling Earth, et al.
St. Clair, Margaret. The Shadow People; Sign of the Labrys
Tolkien, J.R.R. The Hobbit; Lord of the Rings trilogy
Vance, Jack. The Eyes of the Overworld; The Dying Earth, et al.
Zelazny, Roger. Jack of Shadows; Amber series, et al.
"Countless hundreds of comic books...the long-gone EC ones certainly had their effect. Science fiction, fantasy, and horror movies were a big influence."

www.hahnlibrary.net/rpgs/sourc…
More and deeper explanations, bits there