Schachat, A. P., & Sadda, S. R. (2018). Ryan's retina (Sixth edition.). Elsevier.
Chicago Style (17th ed.) CitationSchachat, Andrew P., and SriniVas R. Sadda. Ryan's Retina. Sixth edition. Edinburgh ; London ; New York: Elsevier, 2018.
MLA (9th ed.) CitationSchachat, Andrew P., and SriniVas R. Sadda. Ryan's Retina. Sixth edition. Elsevier, 2018.
Warning: These citations may not always be 100% accurate.