Henning, Grant <br/><br/>
A guide to language testing :  Development, evaluation, research / 
G. Henning. 
 - S. l. :  Newbury House Publishers,  1987. 
 - x, 198 p. 
<br/><br/>Bibliogr.: p.159-164 
<br/><br/><label>ISBN: </label>0066322774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers<br/>English language--Ability testing