APA   Click to copy
Jasko, K., LaFree, G., Piazza, J., & Becker, M. H. (2022). A comparison of political violence by left-wing, right-wing, and Islamist extremists in the United States and the world. Proceedings of the National Academy of Sciences, 119(30). https://doi.org/10.1073/pnas.2122593119

Chicago/Turabian   Click to copy
Jasko, Katarzyna, Gary LaFree, James Piazza, and Michael H. Becker. “A Comparison of Political Violence by Left-Wing, Right-Wing, and Islamist Extremists in the United States and the World.” Proceedings of the National Academy of Sciences 119, no. 30 (2022).

MLA   Click to copy
Jasko, Katarzyna, et al. “A Comparison of Political Violence by Left-Wing, Right-Wing, and Islamist Extremists in the United States and the World.” Proceedings of the National Academy of Sciences, vol. 119, no. 30, 2022, doi:10.1073/pnas.2122593119.

@article{katarzyna2022a,
  title = {A comparison of political violence by left-wing, right-wing, and Islamist extremists in the United States and the world},
  year = {2022},
  issue = {30},
  journal = {Proceedings of the National Academy of Sciences},
  volume = {119},
  doi = {10.1073/pnas.2122593119},
  author = {Jasko, Katarzyna and LaFree, Gary and Piazza, James and Becker, Michael H.}
}