Casley, D. J. <br/><br/>
Data collection in developing countries / 
D.J. Casley and D.A. Lury. 
 - 2nd ed. 
 - Oxford [Oxfordshire] ;  New York :  Clarendon Press,  1987. 
<br/><br/><label>ISBN: </label>01987772823(pbk): 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling (Statistics)
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Developing countries--Statistical services.