Guide to resources in environmental education / 
edited by Peter S. Berry and Catherine Lydford. 
 - 11th ed. 
 - Reading, Eng. :  The Conservation Trust,  1990 
 - Variat. pages. 
<br/><br/> Cover title. 
<br/><br/><label>ISBN: </label>0907153372 
<br/><br/><label>LCCN: </label>92013239     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--Study and teaching--Bibliography.<br/>Environmental education--Bibliography.