APA

Barker R. L., . (1984). Treating couples in crisis: fundamentals and practice in marital therapy. New York: Free Press.

Chicago

Barker Robert L, . 1984. Treating couples in crisis: fundamentals and practice in marital therapy. New York: Free Press.

Harvard

Barker R. L., . (1984). Treating couples in crisis: fundamentals and practice in marital therapy. New York: Free Press.

MLA

Barker Robert L, . Treating couples in crisis: fundamentals and practice in marital therapy. New York: Free Press. 1984.