Criswell, Elnora Rousseau. A Stylistic Analysis of the Iberia Suite for Piano by Isaac Albéñiz, thesis, August 1943; (https://digital.library.unt.edu/ark:/67531/metadc29935/m1/1/: accessed May 8, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .