Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.