To cite package 'AICcmodavg' in publications use:

Marc J. Mazerolle (2019) AICcmodavg: Model selection and multimodel inference based on (Q)AIC(c). R package version 2.2-2. https://cran.r-project.org/package=AICcmodavg.

Corresponding BibTeX entry:

  @Manual{,
    title = {AICcmodavg: Model selection and multimodel inference based
      on (Q)AIC(c)},
    author = {Marc J. Mazerolle},
    year = {2019},
    note = {R package version 2.2-2},
    url = {https://cran.r-project.org/package=AICcmodavg},
  }