Murphy, Raymond. <br/><br/>
Esential Grammar in Use :  A Self-Study Reference and Practice BOOK for Elementary Students of English / 
Raymond Murphy . 
 - Cambridge :  Cambridge University,  1991 . 
<br/><br/><label>ISBN: </label>0521357705 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philology and Linguistic
<br/><br/><label>LC Class. No.: </label>PE1128