Dyfyniad APA

Thorne, M. D., & Thorne, W. D. (1979). Soil, water and crop production. AVI Publishing Co. Inc.

Dyfyniad Arddull Chicago

Thorne, Marlowe D., and Wynne D. Thorne. Soil, Water and Crop Production. Westport: AVI Publishing Co. Inc, 1979.

Dyfyniad MLA

Thorne, Marlowe D., and Wynne D. Thorne. Soil, Water and Crop Production. AVI Publishing Co. Inc, 1979.

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