Hartman, J. R., Pirone, T. P., & Sall, M. A. (2000). Pirone's tree maintenance (7th ed.). Oxford University Press.
Chicagoスタイル(17版)引用形式Hartman, John Richard, T. P. Pirone, , Mary Ann Sall. Pirone's Tree Maintenance. 7th ed. Oxford ; New York: Oxford University Press, 2000.
MLA(9版)引用形式Hartman, John Richard, et al. Pirone's Tree Maintenance. 7th ed. Oxford University Press, 2000.
警告: この引用は必ずしも正確ではありません.