APA-viite (7. p.)
Billow, R. M. (2003). Relational group psychotherapy: From basic assumptions to passion. J. Kingsley Publishers.
Chicago-viite (17. p.)
Billow, Richard M. Relational Group Psychotherapy: From Basic Assumptions to Passion. London ; New York: J. Kingsley Publishers, 2003.
MLA-viite (9. p.)
Billow, Richard M. Relational Group Psychotherapy: From Basic Assumptions to Passion. J. Kingsley Publishers, 2003.
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