Cite

Barbara Countess of Coventry [graphic]

MLA

Spicer, Henry, 1742 or 1743-1804, printmaker. Barbara Countess of Coventry [graphic]. [between 1765 and 1771]. https://collections.library.yale.edu/catalog/16194679.

APA, 6th edition

Spicer, Henry, 1742 or 1743-1804, printmaker. ([between 1765 and 1771])[Barbara Countess of Coventry [graphic]]. https://collections.library.yale.edu/catalog/16194679.