Me pēnei te tohu i te whārangi:
Mike Scarsbrook and Charles Pearson, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/water-resources/media (accessed 3 July 2022)
He kōrero nā Mike Scarsbrook and Charles Pearson, i tāngia i te 24 Nov 2008