Pollard, A H <br/><br/>
Demographic techniques / 
by A H Pollard and G N Pollard 
 - Australia :  Pergamon press,  1974. 
 - 161p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demographic
<br/><br/><label>Dewey Class. No.: </label>305.26  / POL/D