Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.