Secret sentries in space

by Philip J. Klass
Bok · Engelsk · 1971

Utgitt	New York : Random House , [1971]
Omfang	xvi, 236 p. : illus.
Opplysninger	Includes bibliographical references.
Emner	Astronautics, Military - Soviet Union Astronautics, Military - United States Earth - Photographs from space
ISBN	0394469720