APA   Click to copy
Moilanen, K. L. Self-regulation. In W. Troop-Gordon, E. Neblett, & S. T. Butler-Barnes (Eds.), The encyclopedia of adolescence (2nd ed.). Elsevier.

Chicago/Turabian   Click to copy
Moilanen, Kristin L. “Self-Regulation.” In The Encyclopedia of Adolescence , edited by W. Troop-Gordon, E. Neblett, and S. T. Butler-Barnes. 2nd ed. Elsevier, n.d.

MLA   Click to copy
Moilanen, Kristin L. “Self-Regulation.” The Encyclopedia of Adolescence , edited by W. Troop-Gordon et al., 2nd ed., Elsevier.

@inbook{moilanen-a,
  title = {Self-regulation},
  edition = {2nd},
  publisher = {Elsevier},
  author = {Moilanen, Kristin L.},
  editor = {Troop-Gordon, W. and Neblett, E. and Butler-Barnes, S. T.},
  booktitle = {The encyclopedia of adolescence }
}