MLA

Theatre Royal (York, England). On Saturday evening, May 14, 1791, a comic opera, in three acts, call'd The castle of Andalusia ... : after which will be added a farce, call'd Hunt the slipper ... to which will be added a musical piece, called Marian .... [1791]. https://collections.library.yale.edu/catalog/33208035.

APA, 6th edition

Theatre Royal (York, England). ([1791])[On Saturday evening, May 14, 1791, a comic opera, in three acts, call'd The castle of Andalusia ... : after which will be added a farce, call'd Hunt the slipper ... to which will be added a musical piece, called Marian ...]. https://collections.library.yale.edu/catalog/33208035.