Cita APA (7th ed.)

Raven, C. E. (1950). John Ray: Naturalist, his life and works ([2d ed.].). University Press.

Cita Chicago (17th ed.)

Raven, Charles E. John Ray: Naturalist, His Life and Works. [2d ed.]. Cambridge [Eng.]: University Press, 1950.

Cita MLA (8th ed.)

Raven, Charles E. John Ray: Naturalist, His Life and Works. [2d ed.]. University Press, 1950.