Dyfyniad APA

Jacks G V, W. R. O. Rape of the earth: A world survey of soil erosion. Faber and Faber Ltd.

Dyfyniad Arddull Chicago

Jacks G V, Whyte R O. Rape of the Earth: A World Survey of Soil Erosion. London: Faber and Faber Ltd.

Dyfyniad MLA

Jacks G V, Whyte R O. Rape of the Earth: A World Survey of Soil Erosion. Faber and Faber Ltd.

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