Cita APA (7th ed.)
Kell, B. L., & Mueller j Wilson. (1966). Impact of change: A study counselling relationship. Prentice-Hall.
Cita Chicago (17th ed.)
Kell, Bill L., i Mueller j Wilson. Impact of Change: A Study Counselling Relationship. New Jersey: Prentice-Hall, 1966.
Cita MLA (9th ed.)
Kell, Bill L., i Mueller j Wilson. Impact of Change: A Study Counselling Relationship. Prentice-Hall, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.