MLA

Green, Valentine, 1739-1813, printmaker, publisher. Lady Elizabeth Laura, Lady Charlotte Maria, & Lady Anne Horatia, daughters to James, late Earl of Waldegrave, Knight of the Garter [graphic]. [1 December 1781]. https://collections.library.yale.edu/catalog/16732929.

APA, 6th edition

Green, Valentine, 1739-1813, printmaker, publisher. ([1 December 1781])[Lady Elizabeth Laura, Lady Charlotte Maria, & Lady Anne Horatia, daughters to James, late Earl of Waldegrave, Knight of the Garter [graphic]]. https://collections.library.yale.edu/catalog/16732929.