Smith, H. W. The Christian's secret of a happy life. Fleming H.Revell Company.
Cita Chicago (17th ed.)Smith, Hannah Whitall. The Christian's Secret of a Happy Life. Los Angeles: Fleming H.Revell Company.
Cita MLA (9th ed.)Smith, Hannah Whitall. The Christian's Secret of a Happy Life. Fleming H.Revell Company.
Atenció: Aquestes cites poden no estar 100% correctes.