MLA

De Haan, Lieuwe, Frederike Schirmbeck, and Mathias Zink. Obsessive-compulsive Symptoms In Schizophrenia. Springer International Publishing, 2015.

APA

De Haan, L., Schirmbeck, F., & Zink, M. (2015). Obsessive-Compulsive Symptoms in Schizophrenia. Springer International Publishing.

Chicago

De Haan, Lieuwe, Frederike Schirmbeck, and Mathias Zink. Obsessive-Compulsive Symptoms In Schizophrenia. : Springer International Publishing, 2015.