Me pēnei te tohu i te whārangi:

J. J. L. Sulzberger. Related biographies for 'Whitlock, William Arthur', Dictionary of New Zealand Biography, first published in 2000. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/5w26/whitlock-william-arthur/related-biographies (accessed 19 April 2024)