Clayton, Anthony M. H., <br/><br/>
Sustainability  a systems approach 
Tony Clayton M. H. Nicholas J. Radcliffe. 
 - London  Earthscan Pub.  1996. 
 - xiv, 258 pages :    illustration ;    24 cm. 
<br/><br/>p. 241-248. 
<br/><br/><label>ISBN: </label>1853833142  RM148.87 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustainable development<br/>Economic development--Environmental aspects