Cite

Henry Fox, Lord Holland from a picture by Lietard [sic] at Strawberry Hill. [graphic]

MLA

Henry Fox, Lord Holland from a Picture by Lietard [Sic] at Strawberry Hill. [Graphic]. Publish'd 24 Novr. 1798 by S. Harding, 127 Pall Mall, & P. Brown, Crown St., Soho, 0AD. https://collections.library.yale.edu/catalog/16193481.

APA, 6th edition

Henry Fox, Lord Holland from a picture by Lietard [sic] at Strawberry Hill. [graphic]. (0 C.E.). [Portrait prints, Stipple engravings England London 1798]. Publish'd 24 Novr. 1798 by S. Harding, 127 Pall Mall, & P. Brown, Crown St., Soho. https://collections.library.yale.edu/catalog/16193481.