Terrestrial plant ecology/ 
by Michael G.Barbour ,Jack H.Burk and Wanna D Pitts 
 - Menlo Park,California:  The Benjamin /Cummings Publishing Co.,  1980. 
 - xi,604p. 
<br/><br/><label>ISBN: </label>0805305408 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant ecology	<br/>North America	
<br/><br/><label>Dewey Class. No.: </label>581.5264  / BAR/T