They wanted the real answers.
By: Illustrated by Robert Engle.
Edition: [1st American ed.]
Series: A Science explorer book
Publisher: Putnam
Published: 1958
Place of publication: New York
Language: eng
Number of pages: 63
Subjects: Science -- Juvenile literature.
Genres: Juvenile literature.
Notes: "Adapted for American readers from [the author's] They dared to ask questions."