Casley, D. J. <br/><br/>
Data collection in developing countries / 
D. J. Casley and D. A. Lury. 
 - 2nd edition 
 - Oxford :  Clarendon Press,  [1987] 
 - xi, 225 pages :  illustration ;  23 cm 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0198772823 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developing countries -- Statistical services.<br/>Sampling (Statistics)