Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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