Murphy, Raymond. <br/><br/>
Essential grammar in use / 
by Raymond Murphy. 
 - 12th ed. 
 - Cambridge :  Cambridge University,  2011. 
 - 229 p. :  ill ;  26 cm. 
<br/><br/> Includex index. 
<br/><br/><label>ISBN: </label>9780521675437 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers.<br/>English language--grammar.
<br/><br/><label>Dewey Class. No.: </label>P 428.2 MUR/O