MLA

Theatre Royal (York, England). On Tuesday evening, February 25, 1801, their Majesties' servants will perform a comedy, in three acts, called Duplicity; or, The masked friend ... : after which a musical entertainment, in two acts, called No song no supper .... [1801]. https://collections.library.yale.edu/catalog/33208113.

APA, 6th edition

Theatre Royal (York, England). ([1801])[On Tuesday evening, February 25, 1801, their Majesties' servants will perform a comedy, in three acts, called Duplicity; or, The masked friend ... : after which a musical entertainment, in two acts, called No song no supper ...]. https://collections.library.yale.edu/catalog/33208113.