APA   Click to copy
Marks, G., & Steenbergen, M. (2002). Understanding {Political} {Contestation} in the {European} {Union}. Comparative Political Studies, 35, 879–892. https://doi.org/10.1177/001041402236297

Chicago/Turabian   Click to copy
Marks, Gary, and Marco Steenbergen. “Understanding {Political} {Contestation} in the {European} {Union}.” Comparative Political Studies 35 (October 2002): 879–892.

MLA   Click to copy
Marks, Gary, and Marco Steenbergen. “Understanding {Political} {Contestation} in the {European} {Union}.” Comparative Political Studies, vol. 35, Oct. 2002, pp. 879–92, doi:10.1177/001041402236297.

@article{marks2002a,
  title = {Understanding {Political} {Contestation} in the {European} {Union}},
  year = {2002},
  month = oct,
  journal = {Comparative Political Studies},
  pages = {879--892},
  volume = {35},
  doi = {10.1177/001041402236297},
  author = {Marks, Gary and Steenbergen, Marco},
  month_numeric = {10}
}