Cita APA (7a ed.)

Fernald, M. L. (1987). Gray's Manual of botany (8th edition.). Dioscorides Press.

Cita Chicago Style (17a ed.)

Fernald, Merritt L. Gray's Manual of Botany. 8th edition. Oregon: Dioscorides Press, 1987.

Cita MLA (8a ed.)

Fernald, Merritt L. Gray's Manual of Botany. 8th edition. Dioscorides Press, 1987.