Lipsey, R. G. (1966). An introduction to positive economics (2nd edition.). London: Weidenfeld and Nicolson.
Chicago Stili AlıntıLipsey, Richard G. An Introduction to Positive Economics. 2nd edition. London: Weidenfeld and Nicolson, 1966.
MLA AlıntıLipsey, Richard G. An Introduction to Positive Economics. 2nd edition. London: Weidenfeld and Nicolson, 1966.
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