Martorella, Peter H. <br/><br/>
 desings for instruction / Concept learning : 
Peter H. Martorella ... [et al.]. 
 -  Intext Educational Publisher, Scranton :  1972. 
 - ix, 286 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Conceptos--Enseñanza.
<br/><br/><label>LC Class. No.: </label>BF441