APA   Click to copy
Clapp, J. (2006). International Political Economy and the Environment.

Chicago/Turabian   Click to copy
Clapp, J. “International Political Economy and the Environment” (2006).

MLA   Click to copy
Clapp, J. International Political Economy and the Environment. 2006.

@article{j2006a,
  title = {International Political Economy and the Environment},
  year = {2006},
  author = {Clapp, J.}
}