Hussen, Ahmed M. <br/><br/>
Principles of environmental economics :  economics, ecology and public policy / 
Ahmed M. Hussen. 
 - London :  Routledge,  2000. 
 - xxxi, 431 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0415195705 (cased) 0415195713 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental economics.<br/>Ecology.<br/>Environmental policy.