A preliminary report on the robusta coffee soils of Papua New Guinea /
Harding, P. E.
A preliminary report on the robusta coffee soils of Papua New Guinea / P.E. Harding. - Kainantu : Papua New Guinea Coffee Research Institute, 1985. - 72 p. - Coffee research report ; no. 2 .
Coffee--Soils.--Papua New Guinea
A preliminary report on the robusta coffee soils of Papua New Guinea / P.E. Harding. - Kainantu : Papua New Guinea Coffee Research Institute, 1985. - 72 p. - Coffee research report ; no. 2 .
Coffee--Soils.--Papua New Guinea