Davies, A. <br/><br/>
Assessing academic english:  testing english proficiency 1950-89 the ielts solution/ 

 - New York:  Cambridge,  2008. 
 - xiv, 456 p.:  ill.;  23 cm. 
<br/><br/> includes an  appendix, bibliography and index. 
<br/><br/><label>ISBN: </label>9780521542500 
<br/><br/><label>LC Class. No.: </label>DUCE PE1128 A20385