Cita APA (7a ed.)

Lewis, C. S. (1961). A grief observed. Seabury.

Cita Chicago Style (17a ed.)

Lewis, C. S. A Grief Observed. New York: Seabury, 1961.

Cita MLA (9a ed.)

Lewis, C. S. A Grief Observed. Seabury, 1961.