Ashby, Maurice. <br/><br/>
Introduction to plant ecology 

 - 2 ed. 
 - London :  MacMillan,  1969 
 - 287 p.  : ilus 
<br/><br/><label>LCCN: </label>21622 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología vegetal.
<br/><br/><label>Dewey Class. No.: </label>581.5  / A8 1969