APA (7th ed.) Citation

Niebuhr, R. R. (1954). The Idea of Covenant and American Democracy. Church history, 23, 126-135.

Chicago Style (17th ed.) Citation

Niebuhr, Richard R. "The Idea of Covenant and American Democracy." Church History 23 (1954): 126-135.

MLA (9th ed.) Citation

Niebuhr, Richard R. "The Idea of Covenant and American Democracy." Church History, vol. 23, 1954, pp. 126-135.

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