- AU PMB DOC 538-69
- Unidad documental simple
- Oct 1991
Cocoa Board of Papua New Guinea
Cocoa Board of Papua New Guinea
Cocoa Board of Papua New Guinea
Perkins, John and Clarke, Trevor
Perkins, John and Clarke, Trevor
Bleeker, P. and Freyne, D.F.
Moxon, J.E.
Arthur Stevenson, ‘Cocoa Outlook’, Futures Focus, Vol.2, No.3, 13 Mar 1989.
Stevenson, Arthur
Guest, James
Harvest, Vol.9, Nos.3-4, 1983, special issue on Cocoa production