Ostrander Stephen <br/><br/>
Great natural areas in western Pennsylvania / 
Stephen J. Ostrander. 
 - 1st ed. 
 - Mechanicsburg, PA :  Stackpole Books,  2000. 
 - xvi, 208 p. :  maps ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0811727785 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural history--Pennsylvania--Guidebooks
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Pennsylvania--Guidebooks
<br/><br/><label>LC Class. No.: </label>QH105.P4 
<br/><br/><label>Dewey Class. No.: </label>508.748