Werner, Patricia K. <br/><br/>
A Content - Based Grammar  Mosaic Two 
Patricia K. Werner ,  John P. Nelson 
 - 3rd. ed. 
 - New York  Mc Graw-Hill  1996 
 - xvi, 461p.  ill.  23cm. 
<br/><br/> includes index: p.454 - p.461 
<br/><br/><label>ISBN: </label>007114921x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Grammar<br/>English language--Grammar--Problems, exercises, etc.<br/>English language--Study and teaching (Secondary)<br/>English language--Textbooks for foreign speakers