APA (7th ed.) Citation

ScienceDirect (Online service), Hastings, R. P., & Rojahn, J. (2013). Challenging behavior. Elsevier Science & Technology.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Richard P. Hastings, and Johannes Rojahn. Challenging Behavior. Waltham, MA: Elsevier Science & Technology, 2013.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Challenging Behavior. Elsevier Science & Technology, 2013.