O'Connor, K. P., & Aardema, F. (2012). Clinician's handbook for obsessive-compulsive disorder: Inference-based therapy. John Wiley & Sons.

O'Connor, Kieron Philip, and Frederick Aardema. Clinician's Handbook for Obsessive-compulsive Disorder: Inference-based Therapy. Chichester, West Sussex: John Wiley & Sons, 2012.

O'Connor, Kieron Philip, and Frederick Aardema. Clinician's Handbook for Obsessive-compulsive Disorder: Inference-based Therapy. John Wiley & Sons, 2012.