Cita APA (7th ed.)

Grotstein, J. S. (2007). A beam of intense darkness: Wilfred Bion's legacy to psychoanalysis. Karnac.

Cita Chicago (17th ed.)

Grotstein, James S. A Beam of Intense Darkness: Wilfred Bion's Legacy to Psychoanalysis. London ; New York: Karnac, 2007.

Cita MLA (9th ed.)

Grotstein, James S. A Beam of Intense Darkness: Wilfred Bion's Legacy to Psychoanalysis. Karnac, 2007.