Clay, N.L.. <br/><br/>
Advanced English Exercises /  Textual Documents 
N.L.Clay. 
 - 1st ed. / 
 - London :  William Heinemann Ltd. ,  1939. 
 - 231p. ;  19cm. 
<br/><br/><label>Subjects--Index Terms: </label>English language-Exercises G-Languages 
<br/><br/><label>Dewey Class. No.: </label>428  / C 579 Ad