Blackwell, David, ed Raj, Des Solomon, Herbert, ed <br/><br/>
Design of sample surveys 

 - New York  McGraw-hill book company  1972 
 - xviii, 390 p.; 26cm. 
 - McGraw-hill series in probability and statistics .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sample design<br/>Sampling