Murphy, Raymond <br/><br/>
English grammar in use :  a self-study reference and practice book for elementary students of english / 
Raymond Murphy 
 - 2a ed. 
 - New York :  Cambridge University Press,  1994. 
 - 300 p. 
<br/><br/><label>ISBN: </label>0521559286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inglés --Enseñanza<br/>Inglés --Gramática
<br/><br/><label>Dewey Class. No.: </label>425   / M87e