Machines
By: by Bertha Morris Parker...Checked for scientific accuracy by Clifford Holley.
Series: The Basic science education series
Publisher: Row, Peterson and company
Published: 1944
Place of publication: Evanston, Ill., New York city [etc.]
Language: eng
Number of pages: 35
Subjects: Machinery -- Juvenile literature.
Genres: Juvenile literature.
Notes: "Illustrations by George Sargent."--p. [36]