Plant for the Planet:   The billion tree campaign, an Album / 
 The Billion tree Campaign 
United Nations Enveronment Programme (UNEP). 
 - Nairbi, Kenya :  United Nations Enveronment Programme,  2008. 
 - 74 p.,:  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label> 9789280728965 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Afforestation.