Forces of change  a new view of nature 
Daniel Botkin. . . [et. al. ]. 
 - Washington  National Geographic Society  2000 
 - 256p.: col.ill.; 28cm. 
<br/><br/><label>ISBN: </label>792275969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural History; Earth; Human Ecology.
<br/><br/><label>Dewey Class. No.: </label>508  / F32F