MLA

Theatre Royal (York, England). On Thursday Evening, March 24th, 1803, will be presented a tragedy, called Isabella; or, The fatal marriage ... : after which, the dramatic romance of Blue Beard. .... [1803]. https://collections.library.yale.edu/catalog/33207930.

APA, 6th edition

Theatre Royal (York, England). ([1803])[On Thursday Evening, March 24th, 1803, will be presented a tragedy, called Isabella; or, The fatal marriage ... : after which, the dramatic romance of Blue Beard. ...]. https://collections.library.yale.edu/catalog/33207930.