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/atheism-and-secularism/media (accessed 28 September 2023)
He kōrero nā Carl Walrond, i tāngia i te 5 May 2011, reviewed & revised 4 Apr 2018