Ruediger, William Carl,  1874- <br/><br/>
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 .
<br/><br/>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. 
<br/><br/><label>LCCN: </label>e  11001582  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teachers--Training of--United States.
<br/><br/><label>LC Class. No.: </label>L111  / .A6 1911, no. 3