1. For details about the introduction of New Zealand's health system see Hanson, E. (1980).The Politics of Social Security: the 1938 Act and Some Later Developments, University of Auckland, NZ.
2. A less understanding account of developments over the last decade is Rice, G. (1992). A Revolution in Social Policy, 1981–1991. In,The Oxford History of New Zealand 2nd edn, ed. by G. W. Rice. Oxford University Press, Auckland.
3. For an older period piece see Royal Commission Report. (1972).Social Security in New Zealand. Government Printer, Wellington.
4. A Review of Hospital and Related Services in New Zealand. (1969). Department of Health, Wellington.
5. Naylor, C. D. (1986).Private Practice: Public Payment; Canadian Medicine and the Politics of Health Insurance, 1991–1966. McGill and Queens University Press, Montreal.