Murphy, Raymond  1946- <br/><br/>
Essential grammar in use :  A self-study reference and practice book for elementary students of English : With answers / 
Raymond Murphy. 
 - Cambridge, Mass. :  University Press,  1990. 
 - 259 p. :  ill. 
<br/><br/><label>ISBN: </label>0521357705 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers.<br/>English language--Grammar--Problems, exercises, etc.