Dyfyniad APA
Oltmanns, T. F., Davison, G. C., & Neale, J. M. (1991). Case studies in abnormal psychology (3rd ed.). John Wiley & Sons.
Dyfyniad Arddull Chicago
Oltmanns, Thomas F., Gerald C. Davison, and John M. Neale. Case Studies in Abnormal Psychology. 3rd ed. New York: John Wiley & Sons, 1991.
Dyfyniad MLA
Oltmanns, Thomas F., et al. Case Studies in Abnormal Psychology. 3rd ed. John Wiley & Sons, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.