Offical Blackbook price guide to United States postage stamps 

 - New York, NY  House of Collectibles  2003 
 - 609 p. 
<br/><br/> Micromarketing, 9/03 
<br/><br/><label>ISBN: </label>1-4000-4807-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Postage stamps--United States<br/>Stamp collecting--United States