Me pēnei te tohu i te whārangi:
Nancy Swarbrick and Dan Clearwater, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/search-and-rescue/media (accessed 25 April 2024)
He kōrero nā Nancy Swarbrick and Dan Clearwater, i tāngia i te 24 Sep 2007, reviewed & revised 27 Jul 2023 me te āwhina o Dan Clearwater