Dyfyniad APA
ebrary, Inc, & Freeman, A. (2004). Cognition and psychotherapy (2nd ed.). Springer Pub..
Dyfyniad Arddull Chicago
ebrary, Inc, and Arthur Freeman. Cognition and Psychotherapy. 2nd ed. New York: Springer Pub., 2004.
Dyfyniad MLA
ebrary, Inc, and Arthur Freeman. Cognition and Psychotherapy. 2nd ed. Springer Pub., 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.