↑ McLintock, A H, Ed. (1966) Cook Strait from An Encyclopaedia of New Zealand, updated 18-Sep-2007. Note: This is the distance between the North Island and Arapaoa Island; some sources give a slightly larger reading of around 24.5 กิโลเมตร (15.2 ไมล์), that between the North Island and the South Island.
↑ McLauchlan, Gordon (Ed.) (1987) New Zealand encyclopedia, Bateman, P. 121. ISBN978-0-908610-21-1.
