MORGAN, R. (1986). Soil erosion and ITS control. VNR.
Cita Chicago (17th ed.)MORGAN, R.P.C. Soil Erosion and ITS Control. New York: VNR, 1986.
Cita MLA (9th ed.)MORGAN, R.P.C. Soil Erosion and ITS Control. VNR, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.