Bertrand russell, A.S. Neil Homer Lane, W.H. Kilpatrick =  Four progressive educators / 
Edited by Leslie R. Perry 
 - New York :  The Macmillan,  1967 
 - 172 p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational.
<br/><br/><label>Dewey Class. No.: </label>371.33  / P462B