To cite MplusAutomation in publications use:

Hallquist, M. N. & Wiley, J. F. (2018). MplusAutomation: An R Package for Facilitating Large-Scale Latent Variable Analyses in Mplus Structural Equation Modeling, 1-18.<doi:10.1080/10705511.2017.1402334>.

Corresponding BibTeX entry:

  @Article{,
    title = {{MplusAutomation}: An {R} Package for Facilitating
      Large-Scale Latent Variable Analyses in {Mplus}},
    author = {Michael N. Hallquist and Joshua F. Wiley},
    journal = {Structural Equation Modeling},
    year = {2018},
    pages = {1--18},
    doi = {10.1080/10705511.2017.1402334},
    url =
      {http://www.tandfonline.com/doi/full/10.1080/10705511.2017.1402334},
  }