Henkel, P. (1811). The Christian catechism: Composed for the instruction of youth in the knowledge of the Christian religion, together with morning and evening hymns, prayers, etc (2nd ed.). Ambrose Henkel.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHenkel, Paul. The Christian Catechism: Composed for the Instruction of Youth in the Knowledge of the Christian Religion, Together with Morning and Evening Hymns, Prayers, Etc. 2nd ed. Shenandoah County, Va.: Ambrose Henkel, 1811.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHenkel, Paul. The Christian Catechism: Composed for the Instruction of Youth in the Knowledge of the Christian Religion, Together with Morning and Evening Hymns, Prayers, Etc. 2nd ed. Ambrose Henkel, 1811.
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