Dyfyniad APA

Prinsley, R. T., & Swift, M. J. (1987). Amelioration of soil by trees: A review of current concepts and practices. Commonwealth Science Council.

Dyfyniad Arddull Chicago

Prinsley, R T., and M J. Swift. Amelioration of Soil by Trees: A Review of Current Concepts and Practices. London: Commonwealth Science Council, 1987.

Dyfyniad MLA

Prinsley, R T., and M J. Swift. Amelioration of Soil by Trees: A Review of Current Concepts and Practices. Commonwealth Science Council, 1987.

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