Citação norma APA

Xu, Z., Zhang, X., Xie, J., Yuan, G., Tang, X., Sun, X., & Yu, G. (2014). Total Nitrogen Concentrations in Surface Water of Typical Agro- and Forest Ecosystems in China, 2004-2009. Public Library of Science.

Citação norma Chicago

Xu, Zhiwei, Xinyu Zhang, Juan Xie, Guofu Yuan, Xinzhai Tang, Xiaomin Sun, e Guirui Yu. Total Nitrogen Concentrations in Surface Water of Typical Agro- and Forest Ecosystems in China, 2004-2009. Public Library of Science, 2014.

Citação norma MLA

Xu, Zhiwei, et al. Total Nitrogen Concentrations in Surface Water of Typical Agro- and Forest Ecosystems in China, 2004-2009. Public Library of Science, 2014.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.