Smith, E. S. C. <br/><br/>
The interrelationships between shard types and cocoa pest and disease problems in Papua New Guinea / 
by E. S. C. Smith. 
 - [S.l.] :  [s.n.],  [1981]. 
 - p. 37-43. 
<br/><br/> Photocopy from : Proceedings  of the 7th International Cocoa Research Conference, Douala, Cameroon, 4-12th November, 1979. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cacao--Papua New Guinea.<br/>Cacao--Diseases and pests--Papua New Guinea.