APA   Click to copy
Marks, G., Hooghe, L., Steenbergen, M. R., & Bakker, R. (2007). Crossvalidating {Data} on {Party} {Positioning} on {European} {Integration}. Electoral Studies, 26, 23–38. https://doi.org/10.1016/j.electstud.2006.03.007

Chicago/Turabian   Click to copy
Marks, Gary, Liesbet Hooghe, Marco R. Steenbergen, and Ryan Bakker. “Crossvalidating {Data} on {Party} {Positioning} on {European} {Integration}.” Electoral Studies 26 (March 2007): 23–38.

MLA   Click to copy
Marks, Gary, et al. “Crossvalidating {Data} on {Party} {Positioning} on {European} {Integration}.” Electoral Studies, vol. 26, Mar. 2007, pp. 23–38, doi:10.1016/j.electstud.2006.03.007.

@article{marks2007a,
  title = {Crossvalidating {Data} on {Party} {Positioning} on {European} {Integration}},
  year = {2007},
  month = mar,
  journal = {Electoral Studies},
  pages = {23--38},
  volume = {26},
  doi = {10.1016/j.electstud.2006.03.007},
  author = {Marks, Gary and Hooghe, Liesbet and Steenbergen, Marco R. and Bakker, Ryan},
  month_numeric = {3}
}