Cita APA (7a ed.)
Smith, H. W. (1999). The Christian's secret of a happy life. T. Nelson Publishers.
Cita Chicago Style (17a ed.)
Smith, Hannah Whitall. The Christian's Secret of a Happy Life. Nashville: T. Nelson Publishers, 1999.
Cita MLA (9a ed.)
Smith, Hannah Whitall. The Christian's Secret of a Happy Life. T. Nelson Publishers, 1999.
Precaución: Estas citas no son 100% exactas.