Handbook of environmental education :  with international case studies / 
edited by Robert N. Saveland for International Union for Conservation of Nature and Natural Resources, Morges, Switzerland. 
 - London :  Wiley,  1976. 
 - 267 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0471755354 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology--Study and teaching.