APA (7th ed.) Citation

McCarthy, J., & Carmelite Priory. Choir. (1997). The world of Gregorian chant. Decca.

Chicago Style (17th ed.) Citation

McCarthy, John, and Carmelite Priory. Choir. The World of Gregorian Chant. London: Decca, 1997.

MLA (8th ed.) Citation

McCarthy, John, and Carmelite Priory. Choir. The World of Gregorian Chant. Decca, 1997.

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