Novels

Burroughs, Edgar Rice,
--The Land That Time Forgot, Ballantine, New York, 1918. ISBN: 0-345-37407-X
--The People That Time Forgot,
--Out of Time's Abyss, Ballantine, New York, 1918. ISBN: 0-345-37404-5

Sources of Biographical and Bibliographical Information

Goldstone, Tony (ed.), Chapter 1. Adventure Pulps, in The Pulps, Chelsea House, New York, 1970. ISBN: 394-44186-9

Texts online