Kōrero: Duff, Oliver

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Me pēnei te tohu i te whārangi:

Dennis McEldowney. Links and sources for 'Duff, Oliver', Dictionary of New Zealand Biography, first published in 1998. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/4d22/duff-oliver/sources (accessed 2 August 2021)