TORSHEN, Key Pomerance <br/><br/>
The mastery approach to competency-Based education 
/[by] Kay Pomerance Torshen 
 - London  Academic press  1977 
 - x, 226 p. 
<br/><br/> Includes bibliography and index. 
<br/><br/><label>ISBN: </label>012696050X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370.7  / TOR