50 simple things you can do to save the earth 
The Earth Works Group. 
 - Boston, Massachusetts  G.K Hall  1991 
 - xvii, 218p.  ill.  24cm. 
<br/><br/><label>ISBN: </label>0816151288 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection--Citizen participation.<br/>Large type books.