Barbier, Edward B.  <br/><br/>
Paradise lost?:  the ecological economics of biodiversity / 
Edward B. Barbier, Joanne C. Burgess and Carl Folke. 
 - London:  Earthscan Pub.,  1994. 
 - 267 pages :   illustrations ;   23 cm. 
<br/><br/>p. 234-250 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological diversity.<br/>Ecological heterogenity.