Gaya APA

Alwang, J., Norton, G, W. (1993). Introduction to economics of agricultural development / George W. Norton, Jeffrey Alwang . New York: McGraw-Hill.

Gaya MLA

Alwang, Jeffrey., Norton, George, W.. "Introduction to economics of agricultural development / George W. Norton, Jeffrey Alwang". New York: McGraw-Hill, 1993. Textbook.