APA (7th ed.) Citation

(1963). The Heidelberg Catechism. United Church Press.

Chicago Style (17th ed.) Citation

The Heidelberg Catechism. Philadelphia [u.a.]: United Church Press, 1963.

MLA (9th ed.) Citation

The Heidelberg Catechism. United Church Press, 1963.

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