Prinsley, R. T., & Swift, M. J. (1987). Amelioration of soil by trees: A review of current concepts and practices. Commonwealth Science Council.
Chicago-referens (17:e uppl.)Prinsley, R T., och M J. Swift. Amelioration of Soil by Trees: A Review of Current Concepts and Practices. London: Commonwealth Science Council, 1987.
MLA-referens (9:e uppl.)Prinsley, R T., och M J. Swift. Amelioration of Soil by Trees: A Review of Current Concepts and Practices. Commonwealth Science Council, 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.