Rapera, C. L. (1999). The On-site economic value of soil erosion control. Journal of Environmental Science and Management.
Cita Chicago (17th ed.)Rapera, Corazon L. "The On-site Economic Value of Soil Erosion Control." Journal of Environmental Science and Management 1999.
Cita MLA (9th ed.)Rapera, Corazon L. "The On-site Economic Value of Soil Erosion Control." Journal of Environmental Science and Management, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.