APA-viite

George,Mary. (1991). Fertilizer consumption and agricultural development in a developing economy. Classical.

Chicago-tyylinen lähdeviittaus

George,Mary. Fertilizer Consumption and Agricultural Development in a Developing Economy. New Delhi: Classical, 1991.

MLA-viite

George,Mary. Fertilizer Consumption and Agricultural Development in a Developing Economy. Classical, 1991.

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