APA
(1989). The Actions and Uses of Ophthalmic Drugs. London: Butterworth Heinemann.
Chicago
1989. The Actions and Uses of Ophthalmic Drugs. London: Butterworth Heinemann.
Harvard
(1989). The Actions and Uses of Ophthalmic Drugs. London: Butterworth Heinemann.
MLA
The Actions and Uses of Ophthalmic Drugs. London: Butterworth Heinemann. 1989.