The envoronment encyclopedia and directory 1998. 

 - London :  Europa Publications,   1997 
 - xvi, 560 p. :  28 cm. 
<br/><br/><label>ISBN: </label>185743028X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment-Encyclopedia
<br/><br/><label>Universal Decimal Class. No.: </label>363.7025