Productivity of world ecosystems :   proceedings of a symposium presented August 31-September 1, 1972, at the V General Assembly of the Special Committee for the International Biological Program, Seattle, Washington /  
symposium sponsored by U.S. National Committee for the International Biological Program, Division of Biological Sciences, Assembly of Life Sciences, National Research Council. 
 - Washington :   National Academy of Sciences,   1975. 
 - vii, 166 p. :   il. 
<br/><br/><label>ISBN: </label>0309023173 
<br/><br/><label>LCCN: </label>75002203  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Produtividade biológica--Congressos.<br/>Ecologia.--Congressos.<br/>Meio ambiente--Congressos.
<br/><br/><label>Dewey Class. No.: </label>574