APA (7th ed.) Citation

Guerrero, F., Cheetham, R., & Noone, M. J. (1999). Requiem. Glossa.

Chicago Style (17th ed.) Citation

Guerrero, Francisco, Richard Cheetham, and Michael John Noone. Requiem. San Lorenzo de El Escorial: Glossa, 1999.

MLA (9th ed.) Citation

Guerrero, Francisco, et al. Requiem. Glossa, 1999.