Petersen, William. <br/><br/>
Population / 
by William Petersen 
 - New York :  The Macmillan company,  1961. 
 - 652p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>population
<br/><br/><label>Dewey Class. No.: </label>304.6  / PET/P