APA-referens (7:e uppl.)

Pecqueur, A., Laubier, G. d., & Elliott, N. (2013). The most beautiful opera houses in the world. Abrams.

Chicago-referens (17:e uppl.)

Pecqueur, Antoine, Guillaume de Laubier, och Nicholas Elliott. The Most Beautiful Opera Houses in the World. New York: Abrams, 2013.

MLA-referens (9:e uppl.)

Pecqueur, Antoine, et al. The Most Beautiful Opera Houses in the World. Abrams, 2013.