Schmitz, A., & Hillman, J. S. (1979). International trade and agriculture, theory and policy. Westview Press.
Lua i Stíl Chicago (17ú heag.)Schmitz, Andrew, agus Jimmye S. Hillman. International Trade and Agriculture, Theory and Policy. Boulder, Colo: Westview Press, 1979.
Lua MLA (9ú heag.)Schmitz, Andrew, agus Jimmye S. Hillman. International Trade and Agriculture, Theory and Policy. Westview Press, 1979.
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