Ludwigson, John. <br/><br/>
Resources: used and abused. 

 - [New York :  United Nations,  1972] 
 - Man's home .
<br/><br/> Cover title.  "UN sales number 72.I.5."  "Prepared with the cooperation of the Secretariat of the United Nations Conference on the Human Environment." 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>LCCN: </label>73170831 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources.<br/>Man -- Influence on nature.--Man -- Influence on nature.<br/>Conservation of natural resources.
<br/><br/><label>LC Class. No.: </label>HC55  / .L75 
<br/><br/><label>Dewey Class. No.: </label>333.7