Cochran, William G <br/><br/>
Sampling techniques 
By William G. Cochran 
 - 3rd ed. 
 - Islamabad :  NBF,  1977 
 - xvi, 428 p. 
<br/><br/>Introduction; <br/>simple random sampling;<br/>sampling proportions and percentages;<br/>the estimation of sample size;<br/>stratified random sampling; <br/>further aspects of stratified sampling;<br/>ratio estimators;<br/>regression estimators; <br/>systematic sampling; <br/>single-stage cluster sampling: clusters of equal sizes;<br/>Single-stage cluster sampling: clusters of unequal sizes;<br/>Subsampling with units of equal size;<br/>subsampling with units of unequal size;<br/>double sampling; <br/>sources of error in surveys<br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling (Statistics)
<br/><br/><label>Dewey Class. No.: </label>519.52  / C6431