Overfield, Duncan. <br/><br/>
Proposals for economic evaluation of scientific research in the coffee sector / 
Duncan Overfield. 
 - Goroka, Papua New Guinea :  Coffee Industry Corporation,  1992. 
 - 
 - Coffee discussion paper ;  no. 9. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coffee plantations--Survey--Papua New Guinea.<br/>Coffee industry--Economic aspects.