Hennings, Dorothy Grant. <br/><br/>
Mastering classroom communication -- what interaction analysis tells the teacher / 
by Dorothy Grant Hennings. 
 - Pacific Palisades, CA :  Goodyear Publishing Company,  1975. 
 - xiii, 193 p. : 
<br/><br/><label>ISBN: </label>0876205511 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Interaction analysis in education.<br/>Teacher-student relationships.