Heer, David M. <br/><br/>
Society and population 
David M. Heer, Jill S. Grigsby. 
 - 3rd ed. 
 - Englewood Cliffs, N.J.  Prentice-Hall  1992. 
 - xii, 127 p. : ill. ; 23 cm. 
<br/><br/><label>ISBN: </label>0138197075 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.<br/>Demography.