Robot explorers /

Bibliographic Details
Main Author:	Gatland, Kenneth William, 1924-
Format:	Book
Language:	English
Published:	New York] : Macmillan, [1972]
Edition:	1st American ed.
Series:	The Pocket encyclopedia of spaceflight in color
Subjects:	Space probes. Space vehicles. Astronautics > United States. Astronautics > Soviet Union.