Cita APA (7a ed.)

Elwyn, H. (1946). Diseases of the retina. The Blakiston Company Philadephia.

Cita Chicago Style (17a ed.)

Elwyn, Herman. Diseases of the Retina. Toronto: The Blakiston Company Philadephia, 1946.

Cita MLA (9a ed.)

Elwyn, Herman. Diseases of the Retina. The Blakiston Company Philadephia, 1946.