APA   Click to copy
Kim, D. A., & et al. Data Driven Modeling of the Diffuse Galactic Radio Emission. In Prep.

Chicago/Turabian   Click to copy
Kim, Doyeon Avery, and et al. “Data Driven Modeling of the Diffuse Galactic Radio Emission.” in prep (n.d.).

MLA   Click to copy
Kim, Doyeon Avery, and et al. “Data Driven Modeling of the Diffuse Galactic Radio Emission.” In Prep.

@article{doyeon-a,
  title = {Data Driven Modeling of the Diffuse Galactic Radio Emission},
  journal = {in prep},
  author = {Kim, Doyeon Avery and et al.}
}