Me pēnei te tohu i te whārangi:
Robert Ayson and Jock Phillips, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/united-states-and-new-zealand/media (accessed 19 March 2024)
He kōrero nā Robert Ayson and Jock Phillips, i tāngia i te 20 Jun 2012