Man in The Ecosystem :  Proceeding of a conference / 
Michael A. Little and Sharon M. Friedman, Editors 
 - Maryland :  U.S. National committee,  1973 
 - 34 p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energy flow<br/>enviroment impact<br/>Ecosystem
<br/><br/><label>Dewey Class. No.: </label>304.2