APA (7th ed.) Citation

Gregori, d. N., & Gallay, P. (1964). Lettres. Les Belles Lettres.

Chicago Style (17th ed.) Citation

Gregori, de Nazianz, and Paul Gallay. Lettres. Paris: Les Belles Lettres, 1964.

MLA (9th ed.) Citation

Gregori, de Nazianz, and Paul Gallay. Lettres. Les Belles Lettres, 1964.