MLA

Sayers, James, 1748-1823, printmaker. Frontispiece to citizn. Jno. Nicholls's parliamentary & unparliamenty. letters, speeches and visions [graphic]. [15 December 1797]. https://collections.library.yale.edu/catalog/16819389.

APA, 6th edition

Sayers, James, 1748-1823, printmaker. ([15 December 1797])[Frontispiece to citizn. Jno. Nicholls's parliamentary & unparliamenty. letters, speeches and visions [graphic]]. https://collections.library.yale.edu/catalog/16819389.