Gaya APA

Ivey, A, E., Simek-Downing, L. (1980). Counseling and psychotherapy : skills, theories, and practice . Englewood Cliffs, NJ: Prentice Hall.

Gaya MLA

Ivey, Allen, E.., Simek-Downing, Lynn. "Counseling and psychotherapy : skills, theories, and practice". Englewood Cliffs, NJ: Prentice Hall, 1980. Text.