Murphy, Raymond <br/><br/>
Essential grammar in use :  a self-study reference and practice book for elementary learners of English : with answers and interactive eBook / 
Raymond Murphy 
 - 4a ed. 
 - Cambridge :  Cambridge University Press,  2015 
 - x, 319 p. :  ilustraciones ;  26 cm. 
<br/><br/> Includes eBook with audio 
<br/><br/><label>ISBN: </label>9781107480537 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inglés -, Inglés ---gramática, libro para extranjeros
<br/><br/><label>LC Class. No.: </label>PE1128  / .M87