APA   Click to copy
Hirsch, A., Michalak, A., Bruhwiler, L., Peters, W., Dlugokencky, E., & Tans, P. (2006). Inverse modeling estimates of the global nitrous oxide surface flux from 1998–2001.

Chicago/Turabian   Click to copy
Hirsch, A., A. Michalak, L. Bruhwiler, W. Peters, E. Dlugokencky, and P. Tans. “Inverse Modeling Estimates of the Global Nitrous Oxide Surface Flux from 1998–2001” (2006).

MLA   Click to copy
Hirsch, A., et al. Inverse Modeling Estimates of the Global Nitrous Oxide Surface Flux from 1998–2001. 2006.

@article{a2006a,
  title = {Inverse modeling estimates of the global nitrous oxide surface flux from 1998–2001},
  year = {2006},
  author = {Hirsch, A. and Michalak, A. and Bruhwiler, L. and Peters, W. and Dlugokencky, E. and Tans, P.}
}