Radio and education
By: by Armstrong Perry
Series: United States. Office of Education. Bulletin, 1931 -- no. 20, vol. 1, chap. 18
Publisher: United States Government Printing Office
Published: 1931
Place of publication: Washington
Language: eng
Number of pages: 23
Subjects: Radio in education; Radio broadcasting
Notes: At head of title: United States. Department of the Interior. Ray Lyman Wilbur, secretary. Office of Education. William John Cooper, commissioner ...

Biennial survey of education in the United States 1928-1930. Chap. XVIII ... Advance pages. vol. I.