Henkel, P. (1811). The first chief head of the Christian catechism: For the instruction of youth in the knowledge of the Christian religion, together with morning and evening hymns, and prayers. Ambrose Henkel.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHenkel, Paul. The First Chief Head of the Christian Catechism: For the Instruction of Youth in the Knowledge of the Christian Religion, Together with Morning and Evening Hymns, and Prayers. New-Market [Va.]: Ambrose Henkel, 1811.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHenkel, Paul. The First Chief Head of the Christian Catechism: For the Instruction of Youth in the Knowledge of the Christian Religion, Together with Morning and Evening Hymns, and Prayers. Ambrose Henkel, 1811.
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