Global ecology : readings toward a rational  strategy for man 
<label>;</label> Ehrlich, P. R. <label>;</label> Holdren, John P. 
 - New York  Harcourt Brace Jovanovich  1971 
 - viii,295 p. 
<br/><br/>SR 
<br/><br/><label>ISBN: </label>0155296221 
<br/><br/><label>Dewey Class. No.: </label>301.3  / H