Van Deurzen, E. (2002). Existential counselling & psychotherapy in practice (2nd ed.). Sage Publications.
Chicago Style (17th ed.) ZitazioaVan Deurzen, Emmy. Existential Counselling & Psychotherapy in Practice. 2nd ed. London ; Thousand Oaks: Sage Publications, 2002.
MLA (9th ed.) ZitazioaVan Deurzen, Emmy. Existential Counselling & Psychotherapy in Practice. 2nd ed. Sage Publications, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.