Swegmark, G. (1969). On human ocular accommodation: A study of the ciliary muscle activity using a new electrophysiological method, with special reference to the influence of age. [s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Swegmark, Gunnar. On Human Ocular Accommodation: A Study of the Ciliary Muscle Activity Using a New Electrophysiological Method, with Special Reference to the Influence of Age. Göteborg: [s.n.], 1969.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Swegmark, Gunnar. On Human Ocular Accommodation: A Study of the Ciliary Muscle Activity Using a New Electrophysiological Method, with Special Reference to the Influence of Age. [s.n.], 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.