Informes

Kagla C. Gimbol (Economics División), Papua New Quinea Quarterly Cocoa Market Report, October – December 1993, Rabaul, Cocoa Board of PNG, bound with Special Feature, C. Prior & E.S.C. Smith, Canker control around insect damaged bark, PNG Cocoa & Coconut Research Institute, CCRI Information Bulletin No.5, Sep 1991.

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