Dent, Borden D. <br/><br/>
Cartography :   thematic map 
Borden D. Dent 
 - New York :  Mc Graw-Hill ,  1999. 
 - xiv, 417p. -  ill.  27cm. 
<br/><br/>Includes references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cartography