APA Style

Oltmanns, T, F, E, A. (2012). Case Studies in Abnormal Psychology 9th edition (9th edition). Hoboken: John Wiley & Sons.

MLA Style

Oltmanns, Thomas, F.,, Et, Al. "Case Studies in Abnormal Psychology 9th edition". 9th edition Hoboken: John Wiley & Sons, 2012. E-Book.