...You as a machine
By: by Bertha Morris Parker...and M. Elizabeth Downing...
Contributors: Downing, M. Elizabeth, 1905- joint author.
Publisher: Row, Peterson and company
Published: 1942
Place of publication: Evanston, Ill., New York city [etc.]
Language: eng
Number of pages: 35
Subjects: Physiology -- Juvenile literature.
Genres: Juvenile literature.