APA citiranje

Simmonds, N. W. (1985). Farming systems research. Washington, D.C: The World Bank.

Trích dẫn kiểu Chicago

Simmonds, Norman W. Farming Systems Research. Washington, D.C: The World Bank, 1985.

MLA citiranje

Simmonds, Norman W. Farming Systems Research. Washington, D.C: The World Bank, 1985.