Stone, H. W. (1993). Crisis counseling (Rev. ed.). Fortress Press.
Chicago Style aipamenaStone, Howard W. Crisis Counseling. Rev. ed. Minneapolis: Fortress Press, 1993.
MLA aipamenaStone, Howard W. Crisis Counseling. Rev. ed. Fortress Press, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.