APA (7th ed.) Citation

Prather, M., Gauss, M., Berntsen, T., Isaksen, I., Sundet, J., Bey, I., . . . Wild, O. (2003). Fresh air in the 21st century? Geophysical Research Letters, 30(2), .

Chicago Style (17th ed.) Citation

Prather, Michael, et al. "Fresh Air in the 21st Century?" Geophysical Research Letters 30, no. 2 (2003).

MLA (9th ed.) Citation

Prather, Michael, et al. "Fresh Air in the 21st Century?" Geophysical Research Letters, vol. 30, no. 2, 2003.

Warning: These citations may not always be 100% accurate.