MLA

Theatre Royal (Bath, England). This present Saturday, April 7, 1804, will be presented, the comic opera of Rosina ... : after which, a play, in 3 acts, called The voice of nature ... with a musical entertainment, called The waterman .... [1804]. https://collections.library.yale.edu/catalog/33208593.

APA, 6th edition

Theatre Royal (Bath, England). ([1804])[This present Saturday, April 7, 1804, will be presented, the comic opera of Rosina ... : after which, a play, in 3 acts, called The voice of nature ... with a musical entertainment, called The waterman ...]. https://collections.library.yale.edu/catalog/33208593.