APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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