Nordgren, Tyler <br/><br/>
Stars above, earth below: a guide to astronomy in the National Parks 
Tyler Nordgren                                             
 - New York  Springer  2010 
 - xii, 444p. 
<br/><br/><label>ISBN: </label>978-1-4419-1648-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Black holes<br/>Stars
<br/><br/><label>Universal Decimal Class. No.: </label>52  / NOR