Educational hygiene
By: by Willard S. Small.
Series: Bulletin / Department of the Interior, Bureau of Education -- 1919, no. 48; Bulletin (United States. Office of Education) -- 1919, no. 48.
Publisher: Govt. Printing Office
Published: 1919
Place of publication: Washington, D.C
Language: eng
Number of pages: 22
Subjects: Physical education and training -- United States.; School hygiene -- United States.