APA (7th ed.) Citation

(1774). The Heidelbergh catechism: Of the Reformed Christian religion.

Chicago Style (17th ed.) Citation

The Heidelbergh Catechism: Of the Reformed Christian Religion. 1774.

MLA (9th ed.) Citation

The Heidelbergh Catechism: Of the Reformed Christian Religion. 1774.

Warning: These citations may not always be 100% accurate.