APA aipamena

Eva, P. R., & Witcher, J. P. (2010). Voughan & Asbury. Oftamologi Umum. EGC.

Chicago Style aipamena

Eva, Paul Riordan, and John P. Witcher. Voughan & Asbury. Oftamologi Umum. EGC, 2010.

MLA aipamena

Eva, Paul Riordan, and John P. Witcher. Voughan & Asbury. Oftamologi Umum. EGC, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.