Cita APA (7a ed.)

Walter, C. A., & McCoyd, J. L. M. (2009). Grief and loss across the lifespan: A biopsychosocial perspective. Springer Pub. Co.

Cita Chicago Style (17a ed.)

Walter, Carolyn Ambler, y Judith L. M. McCoyd. Grief and Loss Across the Lifespan: A Biopsychosocial Perspective. New York, N.Y: Springer Pub. Co, 2009.

Cita MLA (9a ed.)

Walter, Carolyn Ambler, y Judith L. M. McCoyd. Grief and Loss Across the Lifespan: A Biopsychosocial Perspective. Springer Pub. Co, 2009.