Casley, D. J. <br/><br/>
Data collection in developing countries 
D. J. Casley and D. A. Lury 
 - 2nd ed. 
 - Oxford  Clarendon Press  1987 
 - 225 p. : ill. ; 25 cm. 
<br/><br/><label>ISBN: </label>0198772823 
<br/><br/><label>LCCN: </label>87-012574 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling (Statistics)
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Developing countries--Statistical services