APA   Click to copy
De Vries, C., & Steenbergen, M. (2013). Variable {Opinions}: {The} {Predictability} of {Support} for {Unification} in {European} {Mass} {Publics}. Journal of Political Marketing, 12, 121–141. https://doi.org/10.1080/15377857.2013.752654

Chicago/Turabian   Click to copy
De Vries, Catherine, and Marco Steenbergen. “Variable {Opinions}: {The} {Predictability} of {Support} for {Unification} in {European} {Mass} {Publics}.” Journal of Political Marketing 12 (January 2013): 121–141.

MLA   Click to copy
De Vries, Catherine, and Marco Steenbergen. “Variable {Opinions}: {The} {Predictability} of {Support} for {Unification} in {European} {Mass} {Publics}.” Journal of Political Marketing, vol. 12, Jan. 2013, pp. 121–41, doi:10.1080/15377857.2013.752654.

@article{de2013a,
  title = {Variable {Opinions}: {The} {Predictability} of {Support} for {Unification} in {European} {Mass} {Publics}},
  year = {2013},
  month = jan,
  journal = {Journal of Political Marketing},
  pages = {121--141},
  volume = {12},
  doi = {10.1080/15377857.2013.752654},
  author = {De Vries, Catherine and Steenbergen, Marco},
  month_numeric = {1}
}