Wackernagel, Mathis. <br/><br/>
Our ecological footprint :  reducing human impact on the earth 
/by Mathis Wackernagel and William Rees 
 - Gabriola Island, B. C. :  New Society Publishers,  1996. 
 - 160 p. :  ilus. 
<br/><br/><label>ISBN: </label>086571312X 
<br/><br/><label>LCCN: </label>90615 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desarrollo económico.<br/>Desarrollo sustentable.<br/>Ecología humana.
<br/><br/><label>Dewey Class. No.: </label>333.7  / W3