A catalog of scores and parts (mostly on microfilm, with some hard copy) for the compositions of Giuseppe Verdi in the collection of the American Institute for Verdi Studies at New York University.
Fairtile, Linda B.
"The Verdi Archive at New York University: A LIst of Verdi's Music,"
17, Article 1.
Available at: http://scholarship.richmond.edu/vf/vol1/iss17/1