Length of school day
Series: [U.S.] Bureau of education. City school leaflet -- no. 25; City school leaflet (United States. Bureau of Education) -- no. 25
Publisher: Govt. Print. Off.
Published: 1927
Place of publication: Washington
Language: eng
Subjects: School management and organization; School day
Notes: Caption title.

At head of title: Department of the interior. Bureau of education. Washington, D.C.