Functioning of terrestrial ecosystems at the primary production level / 
edited by F. E. Eckardt. 
 - Paris :  UNESCO,  c 1968. 
 - 516 p. :  ill. ;  28 cm. 
<br/><br/> Includes Index. 
<br/><br/>346  346 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Primary production.<br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>574.5 / U3f