The castrati: a physician's perspective, part 2 - Hektoen International
The Castrati in Opera. by HERIOT, Angus.: (1956) | Addyman Books
The Castrati in Opera Heriot Angus 1927 | PDF | Opera | Performing Arts
Voice Machines
Vocal Materiality and Expression in Intentionally Compromised Vocal Physiology: The Cause and Effect of the Castrato Superstar Luigi Marchesi
The Castrati in Opera (A Da Capo paperback): Heriot, Angus: 9780306800030: Amazon.com: Books
The castrati: a physician's perspective, part 2 - Hektoen International
The castrati: a physician's perspective, part 2 - Hektoen International
The Castrati In Opera: Heriot, Angus: 9780306706509: Amazon.com: Books
The Castrati in Opera Heriot Angus 1927 | PDF | Opera | Performing Arts
University of Bristol
The Castrati in Opera by Angus Heriot: Fair Soft cover (1960) | Tweed Valley Books
Caffarelli (castrato) - Wikipedia
The castrati: a physician's perspective, part 2 - Hektoen International
The Castrati in Opera by Angus Heriot: Fair Soft cover (1960) | Tweed Valley Books
The Castrati in Opera (1956) by Heriot, Angus: Good Hardcover (1956) 1956. | Maynard & Bradley
University of Bristol
University of Bristol
Caffarelli (castrato) - Wikipedia
The castrati: a physician's perspective, part 2 - Hektoen International
