Moller, Alan D. <br/><br/>
A study in the validation of proficiency tests of English as a foreign language  [microform]/ 
Alan D. Moller. 
 - Ann Arbor, Mich.:  University Microfilms International,  1981. 
 - 6 microfisches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph.D.)-University of Edinburgh, 1981. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers.