APA (7th ed.) Citation

Newman, E. (1949). The Wagner operas ([1st ed.].). Knopf.

Chicago Style (17th ed.) Citation

Newman, Ernest. The Wagner Operas. [1st ed.]. New York: Knopf, 1949.

MLA (9th ed.) Citation

Newman, Ernest. The Wagner Operas. [1st ed.]. Knopf, 1949.