Keulen, W. H. (2007). Vocis immutatio: The Apuleian Prologue and the Pleasures and Pitfalls of Vocal Versatility.
Chicago Style (17th ed.) CitationKeulen, Wytse Hette. Vocis Immutatio: The Apuleian Prologue and the Pleasures and Pitfalls of Vocal Versatility. 2007.
MLA (9th ed.) CitationKeulen, Wytse Hette. Vocis Immutatio: The Apuleian Prologue and the Pleasures and Pitfalls of Vocal Versatility. 2007.
Warning: These citations may not always be 100% accurate.