Hansen, Morris H. <br/><br/>
Sample survey methods and theory 

 - New York :  Wiley,  1935 
 - 2 v. 
<br/><br/> La biblioteca tiene : v.1 Methods and applications .-v.2 Theory 
<br/><br/><label>LCCN: </label>25130 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Muestreo estadístico.
<br/><br/><label>Dewey Class. No.: </label>311.21  / H35