MLA

Theatre Royal (York, England). On Thursday evening, March 31, 1803, their Majesties' servants will perform a dramatic romance, (in five acts) called, The castle spectre ... : after which, a comic opera, called Netley Abbey .... [1803]. https://collections.library.yale.edu/catalog/33208291.

APA, 6th edition

Theatre Royal (York, England). ([1803])[On Thursday evening, March 31, 1803, their Majesties' servants will perform a dramatic romance, (in five acts) called, The castle spectre ... : after which, a comic opera, called Netley Abbey ...]. https://collections.library.yale.edu/catalog/33208291.