Me pēnei te tohu i te whārangi:
John Palmer, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/apples-and-pears/media (accessed 29 September 2023)
He kōrero nā John Palmer, i tāngia i te 24 Nov 2008