(The) earth care annual, 1991 / 
edited by Russell Wild 
 -  National Wildlife Federation/Rodale Press  1991 
<br/><br/>24654 
<br/><br/><label>ISBN: </label>9780878579129 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental monitoring<br/>Environmental protection<br/>Conservation of natural resources<br/>Pollution
<br/><br/><label>LC Class. No.: </label>QH  / 540