Smith, H. W. (1952). The Christian's secret of a happy life. Revell.
Lua i Stíl Chicago (17ú heag.)Smith, Hannah Whitall. The Christian's Secret of a Happy Life. Westwood, N.J: Revell, 1952.
Lua MLA (9ú heag.)Smith, Hannah Whitall. The Christian's Secret of a Happy Life. Revell, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.