Regional transport and urban emissions are important ammonia contributors in Beijing, China.

MLA

Pu, Weiwei, et al. “Regional Transport and Urban Emissions Are Important Ammonia Contributors in Beijing, China.” Environmental Pollution, vol. 265, Oct. 2020, p. N.PAG. EBSCOhost, https://doi.org/10.1016/j.envpol.2020.115062.

APA

Pu, W., Ma, Z., Collett Jr, J. L., Guo, H., Lin, W., Cheng, Y., Quan, W., Li, Y., Dong, F., & He, D. (2020). Regional transport and urban emissions are important ammonia contributors in Beijing, China. Environmental Pollution, 265, N.PAG. https://doi.org/10.1016/j.envpol.2020.115062

Chicago

Pu, Weiwei, Zhiqiang Ma, Jeffery L. Collett Jr, Heng Guo, Weili Lin, Ying Cheng, Weijun Quan, Yingruo Li, Fan Dong, and Di He. 2020. “Regional Transport and Urban Emissions Are Important Ammonia Contributors in Beijing, China.” Environmental Pollution 265 (October): N.PAG. doi:10.1016/j.envpol.2020.115062.