Cita APA (7a ed.)

Sorsby, A. (1972). Modern ophthalmology (2d ed.). Butterworths.

Cita Chicago Style (17a ed.)

Sorsby, Arnold. Modern Ophthalmology. 2d ed. London: Butterworths, 1972.

Cita MLA (8a ed.)

Sorsby, Arnold. Modern Ophthalmology. 2d ed. Butterworths, 1972.