Powell, J., & National Institute for Health and Care Excellence, C. (2015). Insertion of a subretinal prosthesis system for retinitis pigmentosa: Interventional procedures guidance [IPG537]. National Institute for Health and Care Excellence.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Powell, J., و CA National Institute for Health and Care Excellence. Insertion of a Subretinal Prosthesis System for Retinitis Pigmentosa: Interventional Procedures Guidance [IPG537]. National Institute for Health and Care Excellence, 2015.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Powell, J., و CA National Institute for Health and Care Excellence. Insertion of a Subretinal Prosthesis System for Retinitis Pigmentosa: Interventional Procedures Guidance [IPG537]. National Institute for Health and Care Excellence, 2015.