Παραπομπή APA

Patterson, J., & Roughan, H. (2007). You 've been warned. Headline publishing group.

Παραπομπή Chicago Style

Patterson, James, και Howard Roughan. You 'Ve Been Warned. London: Headline publishing group, 2007.

Παραπομπή MLA

Patterson, James, και Howard Roughan. You 'Ve Been Warned. Headline publishing group, 2007.