Griffel, M. R. (2013). Operas in English: A dictionary (Revised edition.). The Scarecrow Press, Inc.
Citazione stile Chigago Style (17a edizione)Griffel, Margaret Ross. Operas in English: A Dictionary. Revised edition. Lanham, Maryland: The Scarecrow Press, Inc, 2013.
Citatione MLA (9a ed.)Griffel, Margaret Ross. Operas in English: A Dictionary. Revised edition. The Scarecrow Press, Inc, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.