Thomson, A.J. <br/><br/>
Practical English grammar structure drill - 2 
A.J. Thomson, A.V. Martinet 
 - 4th 
 - Delhi  Oxford  1991 
 - 199 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language-Grammar
<br/><br/><label>Dewey Class. No.: </label>421  / THO N1