Usha Chandrasekaran <br/><br/>
English for classroom interaction / 
by Usha Chandrasekaran 
 - 8th ed. 
 - Chennai :  Thamarai publications,  2009. 
 - 109p. : 
<br/><br/><label>ISBN: </label>8188049204 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classroom interaction
<br/><br/><label>Dewey Class. No.: </label>820  / USH/E