Perry, G.A.    et al. <br/><br/>
The Teachers' Handbook for Environmental Studies/ 
G.A. Perry, E. Jones and A. Hammersley 
 - 3rd ed. 
 - London:  Blandford Press,  c1971. 
 - 301p.:  ill.; 
<br/><br/> includes bibliographical references and index 
<br/><br/><label>ISBN: </label>071373499 X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment--Teachers' Handbook
<br/><br/><label>Dewey Class. No.: </label>301.31