Me pēnei te tohu i te whārangi:
Carl Walrond, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/dishonesty-crime/media (accessed 4 June 2023)
He kōrero nā Carl Walrond, i tāngia i te 5 May 2011, reviewed & revised 2 Nov 2018 with assistance from Greg Newbold