A hierarchical concept of ecosystems / 
R.V. OŽNeill... [et al.] 
 - vii, 253 p. :  il. ;  21 cm. 
 - Monographs in population biology ;  23 .
<br/><br/><label>ISBN: </label>0691084378 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMUNIDADES BIOTICAS.
<br/><br/><label>Dewey Class. No.: </label>574.5  / H5 1986