APA

Zhang X., Williams D. E., Beckles G. L., Gregg E. W., Barker L., Luo H., Rutledge S. A. & Saaddine J. B. (20091202). Diabetic retinopathy, dilated eye examination, and eye care education among African Americans, 1997 and 2004. : Journal of the National Medical Association.

Chicago

Zhang Xinzhi, Williams Desmond E, Beckles Gloria L, Gregg Edward W, Barker Lawrence, Luo Huabin, Rutledge Stephanie A and Saaddine Jinan B. 20091202. Diabetic retinopathy, dilated eye examination, and eye care education among African Americans, 1997 and 2004. : Journal of the National Medical Association.

Harvard

Zhang X., Williams D. E., Beckles G. L., Gregg E. W., Barker L., Luo H., Rutledge S. A. and Saaddine J. B. (20091202). Diabetic retinopathy, dilated eye examination, and eye care education among African Americans, 1997 and 2004. : Journal of the National Medical Association.

MLA

Zhang Xinzhi, Williams Desmond E, Beckles Gloria L, Gregg Edward W, Barker Lawrence, Luo Huabin, Rutledge Stephanie A and Saaddine Jinan B. Diabetic retinopathy, dilated eye examination, and eye care education among African Americans, 1997 and 2004. : Journal of the National Medical Association. 20091202.