Cita APA (7th ed.)

Simmonds, N. W. (1985). Farming systems research: A review. World Bank.

Cita Chicago (17th ed.)

Simmonds, Norman W. Farming Systems Research: A Review. Washington: World Bank, 1985.

Cita MLA (9th ed.)

Simmonds, Norman W. Farming Systems Research: A Review. World Bank, 1985.