Harris, R. (1979). Over-ruled on welfare: The increasing desire for choice in education and medicine and its frustration by representative government : a 15-year investigation into private preferences and public policy between state and private services. London: The Institute of Economic Affairs.
शिकागो स्टाइल उद्धरणHarris, Ralph. Over-ruled On Welfare: The Increasing Desire for Choice in Education and Medicine and Its Frustration By Representative Government : A 15-year Investigation Into Private Preferences and Public Policy between State and Private Services. London: The Institute of Economic Affairs, 1979.
एमएलए उद्धरणHarris, Ralph. Over-ruled On Welfare: The Increasing Desire for Choice in Education and Medicine and Its Frustration By Representative Government : A 15-year Investigation Into Private Preferences and Public Policy between State and Private Services. London: The Institute of Economic Affairs, 1979.