Firman, Susan. <br/><br/>
Penguin students' grammar of English exercises:  with answers ? 
Susan Firman and René Bosewitz. 
 - London :   Penguin,  1988 
 - 169 p.   24 cm. 
<br/><br/><label>ISBN: </label>0140809449; 9780140809442 
<br/><br/><label>Subjects--Topical Terms: </label><br/> English language;  English language -- Textbooks for foreign speakers. 
<br/><br/><label>Dewey Class. No.: </label>425  / FIP