Klein, R., Lee, K. E., Gangnon, R. E., & Klein, B. E. K. (2009). The 25-year Incidence of Visual Impairment in Type 1 Diabetes Mellitus: The Wisconsin Epidemiologic Study of Diabetic Retinopathy.
استشهاد بنمط شيكاغوKlein, Ronald, Kristine E. Lee, Ronald E. Gangnon, و Barbara E. K. Klein. The 25-year Incidence of Visual Impairment in Type 1 Diabetes Mellitus: The Wisconsin Epidemiologic Study of Diabetic Retinopathy. 2009.
MLA استشهادKlein, Ronald, Kristine E. Lee, Ronald E. Gangnon, و Barbara E. K. Klein. The 25-year Incidence of Visual Impairment in Type 1 Diabetes Mellitus: The Wisconsin Epidemiologic Study of Diabetic Retinopathy. 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.