Cite

[Collection of English and Italian songs, vocal duets, trios, and catches], [1812 or earlier].

MLA

Mary, princess, duchess of Gloucester, 1776-1857. [Collection of English and Italian songs, vocal duets, trios, and catches], [1812 or earlier].. Volume 2. https://collections.library.yale.edu/catalog/2004679.

APA, 6th edition

Mary, princess, duchess of Gloucester, 1776-1857. (["Volume 2"])[[Collection of English and Italian songs, vocal duets, trios, and catches], [1812 or earlier].]. https://collections.library.yale.edu/catalog/2004679.