Clark, F. (1989). The authorship of the Gregorian dialogues: An old controversy renewed. Heythrop journal, 30(3), 257.
Cita Chicago Style (17a ed.)Clark, Francis. "The Authorship of the Gregorian Dialogues: An Old Controversy Renewed." Heythrop Journal 30, no. 3 (1989): 257.
Cita MLA (9a ed.)Clark, Francis. "The Authorship of the Gregorian Dialogues: An Old Controversy Renewed." Heythrop Journal, vol. 30, no. 3, 1989, p. 257.
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