CASLEY, D. J. <br/><br/>
DATA COLLECTIOPN IN DEVELOPING COUNTRIES 

 - S.E. 
 - LONDON Reino Unido  CLARENDON PRESS  1981 
 - 244 
<br/><br/><label>ISBN: </label>019877124X 
<br/><br/><label>LCCN: </label>9081 
<br/><br/><label>Dewey Class. No.: </label>309.0723