John Perkins and Trevor Clarke, An Alternative Policy for Cocoa in Papua New Guinea: a discussion paper, Rabaul, Aug 1980 Añadir al portapapeles AU PMB DOC 538-74 Unidad documental simple Aug 1980 Parte dePapua New Guinea Cocoa Board Publications Perkins, John and Clarke, Trevor
John Perkins and Trevor Clarke, Narapela pasin long ronim bisnis kakau insait long Papua Niugini, Rabaul, Aug 1980 with An Alternative Cocoa Policy for Papua New Guinea Añadir al portapapeles AU PMB DOC 538-75 Unidad documental simple Aug 1980 Parte dePapua New Guinea Cocoa Board Publications Perkins, John and Clarke, Trevor