Me pēnei te tohu i te whārangi:
Mark Derby, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/recording-companies-and-studios/media (accessed 28 March 2024)
He kōrero nā Mark Derby, i tāngia i te 22 Oct 2014