Cite

The Right Honble. Maria Countess of Coventry [graphic].

MLA

Houston, Richard, 1721?-1775, printmaker. The Right Honble. Maria Countess of Coventry [graphic].. [between 1760 and 1780?]. https://collections.library.yale.edu/catalog/10927597.

APA, 6th edition

Houston, Richard, 1721?-1775, printmaker. ([between 1760 and 1780?])[The Right Honble. Maria Countess of Coventry [graphic].]. https://collections.library.yale.edu/catalog/10927597.