Search Results - Humphreys, Geoff

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  1. 1

    The use of unstable steeplands in the mountains of Papua New Guinea / by Humphreys, Geoff S.

    Published 1991
    Book
  2. 2

    Mineralogical studies of high phosphate soils from Coral Atolls of Milne Bay Province, Papua New Guinea / by Macfarlane, Mary

    Published 1990
    Other Authors:
    Book