APA (7th ed.) Citation

Oberman, H. A. (1961). Reformation, preaching, and ex opere operato. Christianity divided, 223-239.

Chicago Style (17th ed.) Citation

Oberman, Heiko A. "Reformation, Preaching, and Ex Opere Operato." Christianity Divided 1961: 223-239.

MLA (9th ed.) Citation

Oberman, Heiko A. "Reformation, Preaching, and Ex Opere Operato." Christianity Divided, 1961, pp. 223-239.

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