Byrnes, Heidi. <br/><br/>
Defining and developing proficiency :  guidelines, implementations, and concepts / 
edited by Heidi Byrnes and Michael Canale in conjunction with the American Council on the Teaching of Foreign Languages. 
 - 1 st 
 - Lincolnwood, Ill., U.S.A. :  National Textbook Co.,  c1987. 
 - iii, 137 p. ;  23 cm. 
 - The ACTFL foreign languages education series .
 - ACTFL foreign language education series. .
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0844293857 (pbk.) 
<br/><br/><label>LCCN: </label>86217299  
<br/><br/><label>Subjects--Corporate Names: </label><br/>American Council on the Teaching of Foreign Languages.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages--Ability testing.<br/>Language and languages--Study and teaching--United States.
<br/><br/><label>LC Class. No.: </label>P53.4  / .D4 1987 
<br/><br/><label>Dewey Class. No.: </label>418.0076