Resources and man  a study and recommendations 
Committee on Resources and Man 
 - xi, 259 páginas  23 cm. 
<br/><br/><label>ISBN: </label>716702436 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología humana
<br/><br/><label>Dewey Class. No.: </label>304.2  / COM 1969