Cita APA

Boulez, P., Cox, J., Epstein, M., & Harewood, G. (1986). The future of opera. American Academy of Arts and Sciences.

Citación estilo Chicago

Boulez, Pierre, John Cox, Matthew Epstein, and George Harewood. The Future of Opera. Cambridge, Massachusetts: American Academy of Arts and Sciences, 1986.

Cita MLA

Boulez, Pierre, et al. The Future of Opera. American Academy of Arts and Sciences, 1986.