[Collection of English and Italian songs, vocal duets, trios, and catches]
MLA
Mary, princess, duchess of Gloucester, 1776-1857. [Collection of English and Italian songs, vocal duets, trios, and catches]. [1812 or earlier]. https://collections.library.yale.edu/catalog/2004677.
APA, 6th edition
Mary, princess, duchess of Gloucester, 1776-1857. ([1812 or earlier])[[Collection of English and Italian songs, vocal duets, trios, and catches]]. https://collections.library.yale.edu/catalog/2004677.