MLA

This Present Saturday, Being the 6th Day of March, 1762, Will Be Presented, a Comic-Opera, Called, La Creanza ... publisher not identified, 0AD. https://collections.library.yale.edu/catalog/33230650.

APA, 6th edition

This present Saturday, being the 6th day of March, 1762, will be presented, a comic-opera, called, La Creanza ... (0 C.E.). [Playbills, Broadsides, Brit tracts]. publisher not identified. https://collections.library.yale.edu/catalog/33230650.