MLA

Wolf-Ferrari, Ermanno, 1876-1948. La Sulamite : cantata. 1898?]. https://collections.library.yale.edu/catalog/33355834.

APA, 6th edition

Wolf-Ferrari, Ermanno, 1876-1948. (1898?])[La Sulamite : cantata]. https://collections.library.yale.edu/catalog/33355834.