Physiology and hygiene
By: by Charles P. Emerson and George Herbert Betts.
Contributors: Betts, George Herbert, 1868-1934.
Series: Hygiene and health series ;; bk. 2
Publisher: The Bobbs-Merrill company
Published: 1920
Place of publication: Indianapolis
Language: eng
Number of pages: 323
Subjects: Physiology -- Juvenile literature.; Hygiene -- Juvenile literature.
Genres: Juvenile literature.