Cita APA (7a ed.)

Parkes, C. M., & Bowlby, J. (1987). Bereavement: : studies of grief in adult life (2nd American ed. / foreword by John Bowlby.). International Universities Press.

Cita Chicago Style (17a ed.)

Parkes, Colin Murray, y John Bowlby. Bereavement: : Studies of Grief in Adult Life. 2nd American ed. / foreword by John Bowlby. Madison, Connecticut: International Universities Press, 1987.

Cita MLA (9a ed.)

Parkes, Colin Murray, y John Bowlby. Bereavement: : Studies of Grief in Adult Life. 2nd American ed. / foreword by John Bowlby. International Universities Press, 1987.