Johan, Holmberg <br/><br/>
Defending the future   ; a guide to sustainable development 

 - London   : Earthscan Publications ltd,  1991 
 - 40p.   : ill.   ; 29cm. 
<br/><br/><label>ISBN: </label>1-85383-099-2 
<br/><br/><label>LC Class. No.: </label>PAM HC59.7.H64