TY - BOOK AU - Ruediger,William Carl TI - Agencies for the improvement of teachers in service T2 - Bulletin / U.S. Bureau of Education AV - L111 .A6 1911, no. 3 PY - 1911/// CY - Washington PB - G.P.O. KW - Teachers KW - Training of KW - United States N1 - L111.A6 with: Bibliography of science teaching / American federation of teachers of the mathematical and the natural sciences. Washington : Govt. Print. Off., 1911. Bound together subsequent to publication ER -