Schwartz, William. <br/><br/>
Voices for the wilderness 
/ by William Schwartz. 
 - New York :  Ballantine Books,  1969. 
 - xvii, 366 p. ;  18 cm. 
 - A Sierra Club-Ballantine book. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wilderness areas.
<br/><br/><label>Dewey Class. No.: </label>333.72 SCH  / 1572