APA (7th ed.) Citation

Weisstein, U. W. (1969). The essence of opera. W.W. Norton & Company, Inc.

Chicago Style (17th ed.) Citation

Weisstein, Ulrich Werner. The Essence of Opera. New York: W.W. Norton & Company, Inc, 1969.

MLA (9th ed.) Citation

Weisstein, Ulrich Werner. The Essence of Opera. W.W. Norton & Company, Inc, 1969.

Warning: These citations may not always be 100% accurate.