APA Style
Bergin, A, E., Strupp, H, H. (1972).
Changing Frontiers in the Science of Psychotherapy .
Chicago:
Aldine Atherton.
MLA Style
Bergin, Allen, E., Strupp, Hans, H..
"Changing Frontiers in the Science of Psychotherapy".
Chicago:
Aldine Atherton,
1972.
Text.