Mathematical Bioeconomics/  the mathematics of conservation (pure and applied mathematics 
Clark,Colin W 
 - 3 
 - New Jersey:  Wiley,  2010. 
 - 368 
<br/><br/><label>ISBN: </label>0470372990 
<br/><br/><label>Dewey Class. No.: </label>333.95015118  / CLA/M