Me pēnei te tohu i te whārangi:
Simon Nathan, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/rock-and-mineral-names/media (accessed 24 April 2024)
He kōrero nā Simon Nathan, i tāngia i te 12 Jun 2006