MLA

Gillray, James, 1756-1815, printmaker. The Board of Controul, or, The blessings of a Scotch dictator seriously recommended & humbly dedicated to those it most particularly concerns, the proprietors of East-India stock, by their most obedient, humble servant, John English / [graphic]. [20 March 1787]. https://collections.library.yale.edu/catalog/11811235.

APA, 6th edition

Gillray, James, 1756-1815, printmaker. ([20 March 1787])[The Board of Controul, or, The blessings of a Scotch dictator seriously recommended & humbly dedicated to those it most particularly concerns, the proprietors of East-India stock, by their most obedient, humble servant, John English / [graphic]]. https://collections.library.yale.edu/catalog/11811235.