APA
Lü J., Zhao J., Ellwein L. B., Li S., Han D., Yan Z., Zhang H., Yang M., Wang Y. & Gao X. (20140915). [Prevalence and causes of blindness and moderate and severe visual impairment among adults aged 50 years or above in Longyao County of Hebei Province:the China Nine-Province survey]. : [Zhonghua yan ke za zhi] Chinese journal of ophthalmology.
Chicago
Lü Jian-hua, Zhao Jia-liang, Ellwein Leon B, Li Shan-yu, Han Dong, Yan Zhong-yang, Zhang Hong-bin, Yang Mei, Wang Yu and Gao Xue-cheng. 20140915. [Prevalence and causes of blindness and moderate and severe visual impairment among adults aged 50 years or above in Longyao County of Hebei Province:the China Nine-Province survey]. : [Zhonghua yan ke za zhi] Chinese journal of ophthalmology.
Harvard
Lü J., Zhao J., Ellwein L. B., Li S., Han D., Yan Z., Zhang H., Yang M., Wang Y. and Gao X. (20140915). [Prevalence and causes of blindness and moderate and severe visual impairment among adults aged 50 years or above in Longyao County of Hebei Province:the China Nine-Province survey]. : [Zhonghua yan ke za zhi] Chinese journal of ophthalmology.
MLA
Lü Jian-hua, Zhao Jia-liang, Ellwein Leon B, Li Shan-yu, Han Dong, Yan Zhong-yang, Zhang Hong-bin, Yang Mei, Wang Yu and Gao Xue-cheng. [Prevalence and causes of blindness and moderate and severe visual impairment among adults aged 50 years or above in Longyao County of Hebei Province:the China Nine-Province survey]. : [Zhonghua yan ke za zhi] Chinese journal of ophthalmology. 20140915.