MLA

Williams, Charles, active 1797-1830, printmaker. Rules for a warm weather ball, or, Salutary conduct for corpulent dancers [graphic]. [approximately 1806?]. https://collections.library.yale.edu/catalog/10964751.

APA, 6th edition

Williams, Charles, active 1797-1830, printmaker. ([approximately 1806?])[Rules for a warm weather ball, or, Salutary conduct for corpulent dancers [graphic]]. https://collections.library.yale.edu/catalog/10964751.