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The Postal Service guide to U.S. stamps 
 Guide to U.S. stamps  Postal service guide to United States stamps  Guide to United States stamps 
United States Postal Service. 
 - 30th ed. 
 - New York  HarperResource  c2003 
 - 574 p.  col. ill. ;  23 cm. 
<br/><br/> "Updated stamp values."  Includes index. 
<br/><br/><label>ISBN: </label>0060528257 (pbk.) : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Postage stamps--United States