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

 - 2nd ed 
 - New Delhi  Wiley Eastern  1963 
 - xvii,413p.   
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<br/><br/><label>Subjects--Index Terms: </label>Probability  Statistics  Census  Probabilities 
<br/><br/><label>Dewey Class. No.: </label>519.243