Me pēnei te tohu i te whārangi:
Paul Christoffel, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/hotels-and-motels/media (accessed 2 April 2023)
He kōrero nā Paul Christoffel, i tāngia i te 11 Mar 2010