APA (7th ed.) Citation

Harnack, A. v., & Buchanan, N. (2006). History of Dogma, Volume 1. Project Gutenberg.

Chicago Style (17th ed.) Citation

Harnack, Adolf von, and Neil Buchanan. History of Dogma, Volume 1. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Harnack, Adolf von, and Neil Buchanan. History of Dogma, Volume 1. Project Gutenberg, 2006.

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