Gupton, O. W., & Swope, F. C. (2002). Trees and shrubs of Virginia (1st pbk. ed.). Charlottesville: University of Virginia Press.
Citação norma ChicagoGupton, Oscar W., and Fred C. Swope. Trees and Shrubs of Virginia. 1st pbk. ed. Charlottesville: University of Virginia Press, 2002.
Citação norma MLAGupton, Oscar W., and Fred C. Swope. Trees and Shrubs of Virginia. 1st pbk. ed. Charlottesville: University of Virginia Press, 2002.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.