Dyfyniad APA

Roberts, R. A. J. (2005). Insurance of crops in developing countries. Rome: Food and Agirculture Organization of the United Nations.

Dyfyniad Arddull Chicago

Roberts, R. A. J. Insurance of Crops in Developing Countries. Rome: Food and Agirculture Organization of the United Nations, 2005.

Dyfyniad MLA

Roberts, R. A. J. Insurance of Crops in Developing Countries. Rome: Food and Agirculture Organization of the United Nations, 2005.

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