Lewis R Wolberg. (1988). The technique of psychotherapy (v.1) (4th.). Grune & Stratton.
Chicago Style aipamenaLewis R Wolberg. The Technique of Psychotherapy (v.1). 4th. Orlando: Grune & Stratton, 1988.
MLA aipamenaLewis R Wolberg. The Technique of Psychotherapy (v.1). 4th. Grune & Stratton, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.