Dyfyniad APA
Knowdell, R. L., & Chapman, E. N. (1993). Personal counseling (3rd ed.). Crisp Publications.
Dyfyniad Arddull Chicago
Knowdell, Richard L., and Elwood N. Chapman. Personal Counseling. 3rd ed. Menlo Park, Calif.: Crisp Publications, 1993.
Dyfyniad MLA
Knowdell, Richard L., and Elwood N. Chapman. Personal Counseling. 3rd ed. Crisp Publications, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.