Me pēnei te tohu i te whārangi:

Ian W. Fraser. Related biographies for 'Aitken, John Guthrie Wood', Dictionary of New Zealand Biography, first published in 1996. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/3a8/aitken-john-guthrie-wood/related-biographies (accessed 19 April 2024)