Your opportunity in the schools ...
By: Department of the Interior, Bureau of Education, 1922
Series: [United States] Bureau of Education. Health education -- no. 9 Revised; Health education (Washington, D.C. : 1919) -- no. 9.
Publisher: Govt. Print. Off.
Published: 1922
Place of publication: Washington
Language: eng
Number of pages: 14
Subjects: Health education; Children; Health and hygiene