Lévy, Paul <br/><br/>
Sampling of populations :  methods and applications 

 - New York (NY) :   John Wiley & Sons,   1991. 
 - 419 p. 
<br/><br/><label>ISBN: </label>0471508225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>METODOLOGIA<br/>ESTADISTICAS DEMOGRAFICAS