APA (7th ed.) Zitazioa

Smith, H. W. The Christian's secret of a happy life. Fleming H.Revell Company.

Chicago Style (17th ed.) Zitazioa

Smith, Hannah Whitall. The Christian's Secret of a Happy Life. Los Angeles: Fleming H.Revell Company.

MLA (9th ed.) Zitazioa

Smith, Hannah Whitall. The Christian's Secret of a Happy Life. Fleming H.Revell Company.