APA   Click to copy
Joo, H.-J., & Kim, T. (2016). Leadership development for school principals: An adult learning perspective. Journal of Educational Administration and Policy, 1, 29–40.

Chicago/Turabian   Click to copy
Joo, Hyun-Jun, and Taeyeon Kim. “Leadership Development for School Principals: An Adult Learning Perspective.” Journal of Educational Administration and Policy 1 (2016): 29–40.

MLA   Click to copy
Joo, Hyun-Jun, and Taeyeon Kim. “Leadership Development for School Principals: An Adult Learning Perspective.” Journal of Educational Administration and Policy, vol. 1, 2016, pp. 29–40.

@article{joo2016a,
  title = {Leadership development for school principals: An adult learning perspective},
  year = {2016},
  journal = {Journal of Educational Administration and Policy},
  pages = {29--40},
  volume = {1},
  author = {Joo, Hyun-Jun and Kim, Taeyeon}
}