Cita APA (7th ed.)

Efron, N. (1999). Contact lens complications. Butterworth Heinemann.

Cita Chicago (17th ed.)

Efron, Nathan. Contact Lens Complications. Oxford: Butterworth Heinemann, 1999.

Cita MLA (9th ed.)

Efron, Nathan. Contact Lens Complications. Butterworth Heinemann, 1999.