Παραπομπή σε μορφή APA (7η εκδ.)

Henkel, P. (1813). The Christian catechism: Composed for the instruction of youth in the knowledge of the Christian religion (3d ed.).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Henkel, Paul. The Christian Catechism: Composed for the Instruction of Youth in the Knowledge of the Christian Religion. 3d ed. New Market, Va, 1813.

Παραπομπή σε μορφή MLA (8th εκδ.)

Henkel, Paul. The Christian Catechism: Composed for the Instruction of Youth in the Knowledge of the Christian Religion. 3d ed. 1813.