Cochran, William G. <br/><br/>
Sampling Techniques. 

 - 3ra. ed. 
 - Nueva York :   John Wiley,   1977. 
 - 427 p. ; 24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ESTADISTICAS
<br/><br/><label>Index Terms--Genre/Form: </label><br/>LIBRO
<br/><br/><label>Universal Decimal Class. No.: </label>M-196