Barry, P. J. (1984). Risk management in agriculture. Iowa State University Press.
Cita Chicago (17th ed.)Barry, Peter J. Risk Management in Agriculture. Ames, Iowa: Iowa State University Press, 1984.
Cita MLA (9th ed.)Barry, Peter J. Risk Management in Agriculture. Iowa State University Press, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.