George,Mary. (1991). Fertilizer consumption and agricultural development in a developing economy. Classical.
استشهاد بنمط شيكاغوGeorge,Mary. Fertilizer Consumption and Agricultural Development in a Developing Economy. New Delhi: Classical, 1991.
MLA استشهادGeorge,Mary. Fertilizer Consumption and Agricultural Development in a Developing Economy. Classical, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.