Sax, Joseph L. <br/><br/>
Mountains without handrails, reflections on the national parks / 
Joseph L. Sax. 
 - Ann Arbor :  University of Michigan Press,  c1980. 
 - 152 p. ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 139-148. 
<br/><br/><label>ISBN: </label>047209324X :  $10.00 0472063243 (pbk.) :  $5.95 
<br/><br/><label>LCCN: </label>80036859  
<br/><br/><label>Subjects--Topical Terms: </label><br/>National parks and reserves--United States.
<br/><br/><label>LC Class. No.: </label>E160  / .S29 1980 
<br/><br/><label>Dewey Class. No.: </label>917.3