Prinsley, R. T., & Swift, M. J. (1987). Amelioration of soil by trees: A review of current concepts and practices. Commonwealth Science Council.
Lua i Stíl Chicago (17ú heag.)Prinsley, R T., agus M J. Swift. Amelioration of Soil by Trees: A Review of Current Concepts and Practices. London: Commonwealth Science Council, 1987.
Lua MLA (9ú heag.)Prinsley, R T., agus M J. Swift. Amelioration of Soil by Trees: A Review of Current Concepts and Practices. Commonwealth Science Council, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.