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P.E. Harding, A Preliminary Report on the Arabica Coffee Soils of Papua New Guinea, Coffee Industry Research report No.1, PNG Coffee Research Institute, Kainantu, Dec 1984, 70pp.
P.E. Harding, A Preliminary Report on the Arabica Coffee Soils of Papua New Guinea, Coffee Industry Research report No.1, PNG Coffee Research Institute, Kainantu, Dec 1984, 70pp.
P.E. Harding, A Preliminary Report on the Arabica Coffee Soils of Papua New Guinea, Coffee Industry Research report No.1, PNG Coffee Research Institute, Kainantu, Dec 1984, 70pp.
Resolutions of the 7th Meeting of the Papua New Guinea Agricultural Council, Mendi, Southern Highland Province, 13th May 1988, c.40pp., bound.
Resolutions of the 7th Meeting of the Papua New Guinea Agricultural Council, Mendi, Southern Highland Province, 13th May 1988, c.40pp., bound.
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