MLA

Theatre Royal (Bath, England). This present Saturday, July 6, 1811, will be presented, (performed here but once,) a new comedy, called The gazette extraordinary ... : to which will be added, (never performed here,) a new melo-drame, called Princess & no princess; or The forest of Hermanstadt .... [1811]. https://collections.library.yale.edu/catalog/33208565.

APA, 6th edition

Theatre Royal (Bath, England). ([1811])[This present Saturday, July 6, 1811, will be presented, (performed here but once,) a new comedy, called The gazette extraordinary ... : to which will be added, (never performed here,) a new melo-drame, called Princess & no princess; or The forest of Hermanstadt ...]. https://collections.library.yale.edu/catalog/33208565.