Dyfyniad APA
Patterson, C. H., & Watkins, C. E. (1973). Theories of counseling and psychotherapy. Harper Collins.
Dyfyniad Arddull Chicago
Patterson, C. H., and C. Edward Watkins. Theories of Counseling and Psychotherapy. New York: Harper Collins, 1973.
Dyfyniad MLA
Patterson, C. H., and C. Edward Watkins. Theories of Counseling and Psychotherapy. Harper Collins, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.