APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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