APA   Click to copy
Tumulty, J. P. (2018). Dear enemy effect. In Encyclopedia of animal cognition and behavior. https://doi.org/10.1007/978-3-319-47829-6_693-1

Chicago/Turabian   Click to copy
Tumulty, James P. “Dear Enemy Effect.” In Encyclopedia of Animal Cognition and Behavior, 2018.

MLA   Click to copy
Tumulty, James P. “Dear Enemy Effect.” Encyclopedia of Animal Cognition and Behavior, 2018, doi:10.1007/978-3-319-47829-6_693-1.

@incollection{tumulty2018a,
  title = {Dear enemy effect},
  year = {2018},
  doi = {10.1007/978-3-319-47829-6_693-1},
  author = {Tumulty, James P},
  booktitle = {Encyclopedia of animal cognition and behavior}
}