MLA

Mordden, Ethan. Demented : the World of the Opera Diva. 1st fireside ed. New York: Simon & Schuster, 1990.

APA

Mordden, E. (1990). Demented : the world of the opera diva. 1st fireside ed. New York: Simon & Schuster.

Chicago

Mordden, Ethan, Demented: The World of the Opera Diva. 1st fireside ed. New York: Simon & Schuster, 1990.