More links and websites
More suggestions and sources
Bates, Peter, ed. Labour 40 years on: New Zealand Labour Party 1935–1975. Wellington: INL Print, 1975.
Brown, Bruce. The rise of New Zealand Labour: a history of the New Zealand Labour Party from 1916 to 1940. Wellington: Price Milburn, 1962.
Chapman, Robert. ‘From Labour to National.’ In The Oxford History of New Zealand, edited by W. H. Oliver with B. R. Williams. Oxford and Wellington Clarendon Press, 1981.
Clark, Margaret, ed. For the record: Lange and the fourth Labour government. Wellington: Dunmore, 2005.
Gustafson, Barry. Labour’s path to political independence: the origins and establishment of the New Zealand Labour Party, 1900–19. Auckland: Auckland University Press, Wellington: Oxford University Press, 1980.
O’Farrell, P. J. Harry Holland: militant socialist. Canberra: Australian National University, 1964.
Franks, Peter, and Jim McAloon. Labour: the New Zealand Labour Party 1916-2016. Wellington: Victoria University Press, 2016.