APA (7th ed.) Citation

Catholic Church, Gajard, J., & Abbaye Saint-Pierre de Solesmes. (1956). Gregorian chants: Christmas. London Records.

Chicago Style (17th ed.) Citation

Catholic Church, Joseph Gajard, and Abbaye Saint-Pierre de Solesmes. Gregorian Chants: Christmas. England: London Records, 1956.

MLA (8th ed.) Citation

Catholic Church, et al. Gregorian Chants: Christmas. London Records, 1956.