Caldito, G C Ferrer, P L Guzman, G G De Parel, C P <br/><br/>
Sampling design and procedures 

 - New York  Agricultural development council  1973 
 - 53p.; 20cm. 
 - Papers on survey research methodology .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cluster sampling<br/>Multistage sampling<br/>Random sampling<br/>Research methodology<br/>Sampling techniques