Murphy, Raymond <br/><br/>
Essential grammar in use  a self-study reference and practice book for elementary learners of English : with answers 
Raymond Murphy. 
 - Fourth edition. 
 - New York  Cambridge University Press  2015 
 - x, 319 pages  illustrations 
<br/><br/> Includes index. 
<br/><br/>Grammar exercises. 
<br/><br/><label>ISBN: </label>9781107480551 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lengua inglesa--Gramática--Problemas, ejercicios, etc.<br/>Idioma inglés--Libros de texto para hablantes extranjeros
<br/><br/><label>Dewey Class. No.: </label>428.24  / M97 / 2015