TY - BOOK AU - Maphis,Charles G. TI - Educational extension, T2 - [U.S.] Bureau of Education. Bulletin, 1923, AV - L111 .A6 1923, no. 24 PY - 1923/// CY - Washington PB - Govt. Print. Off. KW - University extension KW - United States N1 - At head of title: Department of the Interior; Advance sheets from the Biennial survey of education in the United States, 1920-1922 ER -