APA (7th ed.) Zitazioa
Martin, D. G. (1971). Introduction to psychotherapy. Brooks/Cole Pub. Co..
Chicago Style (17th ed.) Zitazioa
Martin, David G. Introduction to Psychotherapy. Belmont, Calif.: Brooks/Cole Pub. Co., 1971.
MLA (9th ed.) Zitazioa
Martin, David G. Introduction to Psychotherapy. Brooks/Cole Pub. Co., 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.