MLA

Posselwhite, J. (James), 1798-1884, printmaker. Bentley from a picture by Hudson in Trinity College, Cambridge, under the supervision of the Society for the Diffusion of Useful Knowlege / [graphic]. [between 1826 and 1873]. https://collections.library.yale.edu/catalog/10929366.

APA, 6th edition

Posselwhite, J. (James), 1798-1884, printmaker. ([between 1826 and 1873])[Bentley from a picture by Hudson in Trinity College, Cambridge, under the supervision of the Society for the Diffusion of Useful Knowlege / [graphic]]. https://collections.library.yale.edu/catalog/10929366.