APA (7th ed.) Zitazioa

Lewis, C. S. (1976). A grief observed. Bantam.

Chicago Style (17th ed.) Zitazioa

Lewis, C. S. A Grief Observed. New York: Bantam, 1976.

MLA (9th ed.) Zitazioa

Lewis, C. S. A Grief Observed. Bantam, 1976.