^Robert E. Emery, Thomas F. OltmannsAbnormal Psychology by Thomas F. Oltmanns and Robert E. Emery (2011, Hardcover, Revised)ISBN 9780205037438 (revised Aug 2016)
^Oltmanns, Thomas F.; Emery, Robert E. (2014). Abnormal Psychology, Pearson. BiggerBooks. ISBN 9780205037438 (revised Nov 2023)