Murphy, Josette <br/><br/>
Farmers' estimations as a source of production data :  methodological guidelines for cereals in Africa / 
Josette Murphy, Dennis J. Casley, and John J. Curry 
 - Washington, D.C. :  The World Bank,  1991 
 - 71 p. ;  28 cm. 
 - World Bank technical paper ;  Africa Technical Department series  no. 132. .
 - World Bank technical paper ;  no.132 World Bank technical paper.  Africa Technical Department series .
<br/><br/>Includes bibliographical references (p. [69]-71) 
<br/><br/><label>ISBN: </label>0821317059 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural estimating and reporting--Africa<br/>Agricultural surveys--Methodology--Africa<br/>Grain--Yields--Africa