Cita APA (7th ed.)

Barber, D. W., & Donald, D. C. (1990). When the fat lady sings: Opera history as it ought to be caught. Sound and Vision.

Cita Chicago (17th ed.)

Barber, David W., i David C. Donald. When the Fat Lady Sings: Opera History as It Ought to Be Caught. Canada: Sound and Vision, 1990.

Cita MLA (9th ed.)

Barber, David W., i David C. Donald. When the Fat Lady Sings: Opera History as It Ought to Be Caught. Sound and Vision, 1990.