Marshal Sybil <br/><br/>
Experiment in education 

 - Cambridge  Cambridge University Press  1970 
 - xiv,222p. 
<br/><br/><label>ISBN: </label>0-521-09372-4 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teacher - Technique