Who's out there?
Subtitle: The search for extraterrestrial life
By: Thomas G. Aylesworth ; illustrated with photos. and line drawings.
Publisher: McGraw-Hill
Published: 1975
Place of publication: New York
Language: eng
Number of pages: 119
Subjects: Life on other planets -- Juvenile literature.; Life on other planets.
Description: Considers the possibilities of life in outer space and the increasing number of reasons for believing in its existence.
Notes: Bibliography: p. [113]
Includes index.