Cita APA

(1988). Agricultural productivity: Measurement and explanation. Washington, D.C: Resources for the Future.

Chicago Style Citation

Agricultural Productivity: Measurement and Explanation. Washington, D.C: Resources for the Future, 1988.

Cita MLA

Agricultural Productivity: Measurement and Explanation. Washington, D.C: Resources for the Future, 1988.

Atenció: Aquestes cites poden no estar 100% correctes.