MLA

Theatre Royal (York, England). On Thursday evening, May 22, will be presented Mr. Morton's favourite comedy, called A cure for the heart ache ... After which, a dramatic romance, in two acts, called, Blue Beard; or, female curiosity! .... [1800]. https://collections.library.yale.edu/catalog/33208080.

APA, 6th edition

Theatre Royal (York, England). ([1800])[On Thursday evening, May 22, will be presented Mr. Morton's favourite comedy, called A cure for the heart ache ... After which, a dramatic romance, in two acts, called, Blue Beard; or, female curiosity! ...]. https://collections.library.yale.edu/catalog/33208080.