Cita APA (7a ed.)

Fan, S., Zhang, Y., Qin, J., Song, X., Wang, M., & Ma, J. (2021). Family environmental risk factors for developmental speech delay in children in Northern China. Nature Portfolio.

Cita Chicago Style (17a ed.)

Fan, Shengfu, Ying Zhang, Jiangbo Qin, Xuan Song, Meiyun Wang, y Jiangping Ma. Family Environmental Risk Factors for Developmental Speech Delay in Children in Northern China. Nature Portfolio, 2021.

Cita MLA (8a ed.)

Fan, Shengfu, et al. Family Environmental Risk Factors for Developmental Speech Delay in Children in Northern China. Nature Portfolio, 2021.