APA (7th ed.) Citation

Heriot, A. (1956). The castrati in opera. Secker & Warburg.

Chicago Style (17th ed.) Citation

Heriot, Angus. The Castrati in Opera. London: Secker & Warburg, 1956.

MLA (9th ed.) Citation

Heriot, Angus. The Castrati in Opera. Secker & Warburg, 1956.

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