एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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