of Verdi, Volume 1: From Oberto to Rigoletto. London: Cassell. . Caldwell, Sarah & Rebecca Matlock (2008), Challenges: A Memoir of My Life in Opera, Middletown, Connecticut: Wesleyan University Press. . Gossett, Philip (2006), Divas and Scholars: Performing Italian Opera, Chicago: University of Chicago. Hansell, Kathleen Kuzmick (2003), "Introduction to the Critical Edition of Stiffelio, Chicago: The University of Chicago Press and Milan: Casa Ricordi. Kessler, Daniel (2008). Sarah Caldwell; The First Woman of Opera, p. 236. Lanham, Maryland: The Scarecrow Press. Kimbell, David, in Holden, Amanda (Ed.) (2001), The New Penguin Opera Guide, New York: Penguin Putnam. Osborne, Charles (1969), The Complete Opera of Verdi, New York: Da Capo Press, Inc. Parker, Roger, "Stiffelio" in Stanley Sadie, (Ed.) (2008), The New Grove Dictionary of Opera, Vol. Four. London: MacMillan Publishers, Inc. Other sources'Chusid, Martin, (Ed.) (1997), Verdi’s Middle Period, 1849 to 1859, Chicago and London: University of Chicago Press. De Van, Gilles (trans. Gilda Roberts) (1998), Verdi’s Theater: Creating Drama Through Music. Chicago & London: University of Chicago Press. (hardback), Martin, George, Verdi: His Music, Life and Times (1983), New York: Dodd, Mead and Company. Parker, Roger (2007), The New Grove Guide to Verdi and His Operas, Oxford & New York: Oxford University Press. Pistone, Danièle (1995), Nineteenth-Century Italian Opera: From Rossini to Puccini, Portland, OR: Amadeus Press. Phillips-Matz, Mary Jane (1993), Verdi: A Biography, London & New York: Oxford University Press. Toye, Francis (1931), Giuseppe Verdi: His Life and Works, New York: Knopf Walker, Frank, The Man Verdi (1982), New York: Knopf, 1962, Chicago: University of Chicago Press. Warrack, John; West, Ewan (1992), The Oxford Dictionary of Opera New York: OUP. Werfel, Franz and Stefan, Paul (1973), Verdi: The Man and His Letters'', New York, Vienna House. External links Verdi: "The story" and "History" on giuseppeverdi.it (in English) Italian libretto from giuseppeverdi.it Operas by Giuseppe Verdi Italian-language operas Operas Operas set in Austria 1850 operas Operas based on plays