Challengers of the unknown
Subtitle: on the job with today's scientists,  plus related projects
By: by Fred Brewer.
Series: A Science world book
Publisher: Four Winds Press
Published: 1966
Place of publication: New York
Language: eng
Number of pages: 128
Subjects: Science -- Juvenile literature.
Genres: Juvenile literature.
Notes: Bibliography: p. 126-127.
"Adapted from articles in Science world."