Dyfyniad APA

SOIL EROSION AND ITS CONTROL & MORGAN, R. [. (1986). Soil erosion and its control/editor R.P.C. Morgan. Van Nostrand Reinhold Company.

Dyfyniad Arddull Chicago

SOIL EROSION AND ITS CONTROL and R.P.C. [ed] MORGAN. Soil Erosion and Its Control/editor R.P.C. Morgan. New York: Van Nostrand Reinhold Company, 1986.

Dyfyniad MLA

SOIL EROSION AND ITS CONTROL and R.P.C. [ed] MORGAN. Soil Erosion and Its Control/editor R.P.C. Morgan. Van Nostrand Reinhold Company, 1986.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.