National Geographic's Guide to National Parks of the United States 

 - 8th ed. 
 - New York:  National Geographics Society;  2016 
 - 494 pages:  col. ill., col. maps   21 cm. 
<br/><br/><label>ISBN: </label>9781426216510 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Parks -- United States -- Guidebooks
<br/><br/><label>LC Class. No.: </label>COL E 160 .N21 2016