Yam, Peter <br/><br/>
primary level grammar and usage 6/ Peter Yam. 

 -  Singapora: Singapora: Asian Puplication  2007 
 - 310p. : ill. 23 cm Includes Index. 
<br/><br/><label>ISBN: </label>9789812550668 
<br/><br/><label>LC Class. No.: </label>PE 1112.Y 141 2007 
<br/><br/><label>Dewey Class. No.: </label>PE 1112.Y 141 2007 
<br/><br/><label>National Library of Medicine Call No.: </label>PE 1112.Y 141 2007