Ober, Richard L., <br/><br/>
Systematic observation of teaching  an interaction analysis-instructional strategy approach/ 
Richard L. Ober, Ernest L. Bentley and Edith Miller. 
 - Englewood Cliffs, N.J.:  Prentice-Hall,  1971. 
 - xv, 236 pages ;  24 cm. 
<br/><br/>Bibliography: pages 225-230. 
<br/><br/><label>ISBN: </label>0138811369 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Interaction analysis in education.<br/>Teaching.