APA Style

Sihota, R., Tandon, R. (2007). Parsons' diseases of the eye : Diseases of the eye (20th ed.). Edinburgh ; New York: Churchill Livingstone.

MLA Style

Sihota, Ramanjit., Tandon, Radhika. "Parsons' diseases of the eye : Diseases of the eye". 20th ed. Edinburgh ; New York: Churchill Livingstone, 2007. Text.