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1Published 1971Subjects “...Soils Papua New Guinea Morehead district....”
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2Published 1972Subjects “...Soils Papua New Guinea Aitape district....”
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3Published 1976Table of Contents “...Reiner and J.A. Mabbutt -- The soil families / by H.A. Haantjens -- Vegetation and ecology / by R.G. ...”
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4Published 1972Subjects “...Soils Papua New Guinea Vanimo district....”
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