APA (7th ed.) Citation

Ewen, D. (1971). The new encyclopedia of the opera. Hill and Wang.

Chicago Style (17th ed.) Citation

Ewen, David. The New Encyclopedia of the Opera. New York: Hill and Wang, 1971.

MLA (9th ed.) Citation

Ewen, David. The New Encyclopedia of the Opera. Hill and Wang, 1971.

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