Cita APA (7th ed.)

Newell, F. W. (1996). Ophthalmology: Principles and concepts (8th ed.). Merriam & Webster.

Cita Chicago (17th ed.)

Newell, Frank W. Ophthalmology: Principles and Concepts. 8th ed. Sampaloc, Manila: Merriam & Webster, 1996.

Cita MLA (9th ed.)

Newell, Frank W. Ophthalmology: Principles and Concepts. 8th ed. Merriam & Webster, 1996.