Educational hygiene
By: by Willard S. Small.
Series: Bulletin / Department of the Interior, Bureau of Education ;; 1923, no. 33; Bulletin (United States. Bureau of Education) ;; 1923, no. 33
Publisher: G.P.O.
Published: 1923
Place of publication: Washington
Language: eng
Number of pages: 36
Subjects: School hygiene -- United States
Notes: Includes bibliographical references.