APA

JOANNA H., IFPRI Intitut International de Recherche sur les politiques Alimentaires Washington.US, .Impact evolution of research by the international food policy research institute on agricultural trade liberalization, developing countries, and wto's doha negotiations. Washington: .

Chicago

JOANNA Hewitt, IFPRI Intitut International de Recherche sur les politiques Alimentaires Washington.US, .Impact evolution of research by the international food policy research institute on agricultural trade liberalization, developing countries, and wto's doha negotiations. Washington: .

Harvard

JOANNA H., IFPRI Intitut International de Recherche sur les politiques Alimentaires Washington.US, .Impact evolution of research by the international food policy research institute on agricultural trade liberalization, developing countries, and wto's doha negotiations. Washington: .

MLA

JOANNA Hewitt, IFPRI Intitut International de Recherche sur les politiques Alimentaires Washington.US, .Washington: . .