MLA

Meyer, Henry Hoppner, 1783-1847, printmaker. The Right Honourable William Wyndham Grenville, Lord Grenville Chancellor of the University of Oxford / [graphic]. [21 November 1814]. https://collections.library.yale.edu/catalog/33191889.

APA, 6th edition

Meyer, Henry Hoppner, 1783-1847, printmaker. ([21 November 1814])[The Right Honourable William Wyndham Grenville, Lord Grenville Chancellor of the University of Oxford / [graphic]]. https://collections.library.yale.edu/catalog/33191889.