Zinsser, William <br/><br/>
On writing well :  The classic guide to writing nonfiction / 
William Zinsser. 
 - 30th anniversary ed., 
 - New York :  HarperCollins,  2006. 
 - xiii, 321 p. :  facsim ;  21 cm. 
<br/><br/><label>ISBN: </label>978-0-06-089154-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Rhetoric