APA   Click to copy
Clapp, J. (2018). Environmental political economy.

Chicago/Turabian   Click to copy
Clapp, J. “Environmental Political Economy” (2018).

MLA   Click to copy
Clapp, J. Environmental Political Economy. 2018.

@article{j2018a,
  title = {Environmental political economy},
  year = {2018},
  author = {Clapp, J.}
}