Lewis, C. (1955). Surprised by joy: The shape of my early life. Harcourt Brace & World Publishers.
Lua i Stíl Chicago (17ú heag.)Lewis, C.S. Surprised by Joy: The Shape of My Early Life. New York: Harcourt Brace & World Publishers, 1955.
Lua MLA (9ú heag.)Lewis, C.S. Surprised by Joy: The Shape of My Early Life. Harcourt Brace & World Publishers, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.