APA   Click to copy
Alkhaled, A., Michalak, A., Kawa, S. R., Olsen, S., & Wang, J. (2008). A global evaluation of the regional spatial variability of column integrated CO2 distributions.

Chicago/Turabian   Click to copy
Alkhaled, A., A. Michalak, S. R. Kawa, S. Olsen, and J. Wang. “A Global Evaluation of the Regional Spatial Variability of Column Integrated CO2 Distributions” (2008).

MLA   Click to copy
Alkhaled, A., et al. A Global Evaluation of the Regional Spatial Variability of Column Integrated CO2 Distributions. 2008.

@article{a2008a,
  title = {A global evaluation of the regional spatial variability of column integrated CO2 distributions},
  year = {2008},
  author = {Alkhaled, A. and Michalak, A. and Kawa, S. R. and Olsen, S. and Wang, J.}
}