Mathematical ecology  an introduction 
ed. by Thomas G. Hallam, Simon A. Levin. 
 - Berlin  S-V  1986 
 - xi, 457p 
 - Biomathematics  v.17 .
<br/><br/><label>ISBN: </label>3540136312 
<br/><br/><label>Dewey Class. No.: </label>574.50151  / N86