Back to the stone age.
By: Illustrated by John Coleman Burroughs.
Publisher: Canaveral Press
Published: 1963
Place of publication: New York
Language: eng
Number of pages: 318
Subjects: Prehistoric peoples -- Fiction.
Genres: Fiction.
Notes: "Originally published under the title Seven worlds to conquer [in Argosy magazine, Jan. 9-Feb. 13, 1937]"