Wright, p. 180. The Dreadnought_Project states 432 (2 of common 12-inch and 41 shells of 12-inch high explosive). Other sources state 420 shells were fired.
gwpda.org
"Operation ZZ". World War One: The Great War at Sea. Retrieved 13 May 2010.
natlib.govt.nz
paperspast.natlib.govt.nz
"A Battleship's Engine Rooms". Press. Christchurch. 17 April 1913. Retrieved 8 September 2022. This contemporary newspaper article provides a description of a visit to the ship's engine and boiler rooms.
"H.M.S. New Zealand". Press. Christchurch. 28 January 1919. Retrieved 8 September 2022. This newspaper article lists all of silverware and trophies given to New Zealand up until January 1919. It also notes that upon the outbreak of the war that Halsey did not put them on shore for safe keeping. He was of the opinion that their donors would have preferred that they not be separated from the battlecruiser and if she was sunk, should go down with her. Subsequent captains continued this policy.
Ross, Trevor Wilson (31 December 1975). "Battle Cruisers in Collision". Naval Historical Review (December 1975). Liverpool, NSW, Australia: Naval Historical Society of Australia.
