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: Scholastic Book Services
Published: 1965
Place of publication: New York
Language: eng
Number of pages: 128
Subjects: Science; Juvenile literature
Notes: "Adapted from articles published in Science world."

Includes index.

Bibliography: p. 126-127.