APA

Yi Z., Ping T., Boachang G., Yi X., Bouha L. & Yongping L.Causes and implications of the recent increanse in the reported sex ratio in birth in China. : .

Chicago

Yi Zeng, Ping Tu, Boachang Gu, Yi Xu, Bouha Li and Yongping Li.Causes and implications of the recent increanse in the reported sex ratio in birth in China. : .

Harvard

Yi Z., Ping T., Boachang G., Yi X., Bouha L. and Yongping L.Causes and implications of the recent increanse in the reported sex ratio in birth in China. : .

MLA

Yi Zeng, Ping Tu, Boachang Gu, Yi Xu, Bouha Li and Yongping Li.: . .