The unknown : 11 stories / edited and with an introduction by D. R. Bensen ; forword by Isaac Asimov ; illustrated by Edd Cartier.

Bibliographic Details

Uniform Title:	Unknown worlds.
Other Authors:	Bensen, D. R., Asimov, Isaac, 1920-1992
Format:	Book
Language:	English
Published:	New York : Pyramid Books, 1963.
Series:	Pyramid science fiction.
Subjects:	Science fiction.