Casley, D. J. <br/><br/>
Data collection in developing countries / 
D.J. Casley and D.A. Lury. 
 - Oxford :  Clarendon,  1981 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0198771231 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling (Statistics)<br/>Underdeveloped areas--Social surveys