Cochran, William G. <br/><br/>
Sampling techniques / 
by William G. Cochran 
 - New Delhi :  Asia Publishing House,  1959. 
 - 330 p.  Hard Back 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Simple random sampling<br/>Ratio estimators<br/>Systematic sampling
<br/><br/><label>Dewey Class. No.: </label>519.52  / WIL-S