Earthworks :  ten years on the environmental front  
/ edited by Mary Lou Van Deventer. 
 - San Francisco :   Friends of the Earth,   1980. 
 - 255 p. :   ill. ;   28 cm. 
<br/><br/><label>ISBN: </label>0913890391 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Conservation of natural resources; Environmental protection.
<br/><br/><label>Dewey Class. No.: </label>333.72 EAR  / 1976