Use and conservation of the biosphere   Proceedings of the inter governmental conference o    

 - Paris  Unesco            1970 
 - 272p  cm. 
 - Natural Resources Research Series; 10 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biogeography
<br/><br/><label>Dewey Class. No.: </label>U3p1,N68, L0