On Saturday the 6th of June 1772; will be presented a comic opera, (never acted here,) call'd The royal merchant ... : to which will be added a pantomime entertainment, (not performed these four years) call'd A trip to Dargle ...
MLA
On Saturday the 6th of June 1772; Will Be Presented a Comic Opera, (Never Acted Here,) Call'd The Royal Merchant ... : to Which Will Be Added a Pantomime Entertainment, (Not Performed These Four Years) Call'd A Trip to Dargle ... publisher not identified, 0AD. https://collections.library.yale.edu/catalog/33230670.
APA, 6th edition
On Saturday the 6th of June 1772; will be presented a comic opera, (never acted here,) call'd The royal merchant ... : to which will be added a pantomime entertainment, (not performed these four years) call'd A trip to Dargle ... (0 C.E.). [Playbills, Broadsides, Brit tracts]. publisher not identified. https://collections.library.yale.edu/catalog/33230670.
