APA   Click to copy
Oesch, D., Morris, K., & Westenberger, G.-J. Polarised Upgrading: Changes in the class structure of British and German cities 1991 – 2021.

Chicago/Turabian   Click to copy
Oesch, Daniel, Katy Morris, and Gina-Julia Westenberger. “Polarised Upgrading: Changes in the Class Structure of British and German Cities 1991 – 2021” (n.d.).

MLA   Click to copy
Oesch, Daniel, et al. Polarised Upgrading: Changes in the Class Structure of British and German Cities 1991 – 2021.

@article{daniel-a,
  title = {Polarised Upgrading: Changes in the class structure of British and German cities 1991 – 2021},
  author = {Oesch, Daniel and Morris, Katy and Westenberger, Gina-Julia}
}