[Beckford, Townsend and Sawbridge] [graphic].
MLA
Houston, Richard, 1721?-1775, printmaker. [Beckford, Townsend and Sawbridge] [graphic].. [1769]. https://collections.library.yale.edu/catalog/15816318.
APA, 6th edition
Houston, Richard, 1721?-1775, printmaker. ([1769])[[Beckford, Townsend and Sawbridge] [graphic].]. https://collections.library.yale.edu/catalog/15816318.