APA (7th ed.) Zitazioa
Watkins, C. E. (1997). Handbook of psychotherapy supervision. John Wiley & Sons, Inc.
Chicago Style (17th ed.) Zitazioa
Watkins, C. Edward. Handbook of Psychotherapy Supervision. New York: John Wiley & Sons, Inc, 1997.
MLA (9th ed.) Zitazioa
Watkins, C. Edward. Handbook of Psychotherapy Supervision. John Wiley & Sons, Inc, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.