ScienceDirect (Online service), Frost, R. O., & Steketee, G. (2002). Cognitive approaches to obsessions and compulsions: Theory, assessment, and treatment. Pergamon.
Chicago Style (17th ed.) CitationScienceDirect (Online service), Randy O. Frost, and Gail Steketee. Cognitive Approaches to Obsessions and Compulsions: Theory, Assessment, and Treatment. Amsterdam ; New York: Pergamon, 2002.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Cognitive Approaches to Obsessions and Compulsions: Theory, Assessment, and Treatment. Pergamon, 2002.
Warning: These citations may not always be 100% accurate.