Gaya APA

Riordan, P., Whitcher, J, P. (2004). General Ophthalmology (Ed.16). New York: Mc Graw Hill Book Company.

Gaya MLA

Riordan, Paul., Whitcher, John, P. "General Ophthalmology". Ed.16 New York: Mc Graw Hill Book Company, 2004. Text.