C. Prior, J. O’Donohue, R. Rotscheid & E. Sitapai, Black Pod Canker and Seedling Blight Diseases in Cocoa: an illustrated guide for growers [in English, Tok Pisin and Motu], 1981 Añadir al portapapeles AU PMB DOC 538-77 Unidad documental simple 1981 Parte dePapua New Guinea Cocoa Board Publications Prior, C., O'Donohue, J., Rotscheid, R. and Sitapai, e.