APA (7th ed.) Citation

Clark, F. (1989). The authorship of the Gregorian dialogues: An old controversy renewed. Heythrop journal, 30(3), 257.

Chicago Style (17th ed.) Citation

Clark, Francis. "The Authorship of the Gregorian Dialogues: An Old Controversy Renewed." Heythrop Journal 30, no. 3 (1989): 257.

MLA (9th ed.) Citation

Clark, Francis. "The Authorship of the Gregorian Dialogues: An Old Controversy Renewed." Heythrop Journal, vol. 30, no. 3, 1989, p. 257.

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