Agencies for the improvement of teachers in service /
Ruediger, William Carl, 1874-
Agencies for the improvement of teachers in service / by William Carl Ruediger. - Washington : G.P.O., 1911. - 157 p. ; 23 cm. - Bulletin / U.S. Bureau of Education ; 1911, no. 3 = Whole no. 449 .
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.
e 11001582
Teachers--Training of--United States.
L111 / .A6 1911, no. 3
Agencies for the improvement of teachers in service / by William Carl Ruediger. - Washington : G.P.O., 1911. - 157 p. ; 23 cm. - Bulletin / U.S. Bureau of Education ; 1911, no. 3 = Whole no. 449 .
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.
e 11001582
Teachers--Training of--United States.
L111 / .A6 1911, no. 3