Wilke, Richard J. <br/><br/>
Strategies for the training of teachers in environmental education / 
Richard J. Wilke, R. Ben Peyton, Harold R. Hungerford 
 - Paris:  UNESCO, Division of Science, Technical and Environmental Education,  1987 
 - 147 p.;  30 cm. 
 - Environmental Education Series,  25 .
<br/><br/><label>LC Class. No.: </label>QH541.2  / W68