MLA

Portsmouth Theatre (Portsmouth, England). At the theatre in Portsmouth, this present Friday, being the 24th of August, will be presented a tragedy, call'd, Macbeth ... to which will be added Gasconado the great ... tickets to be had at the Fountain ... and Two Blue Posts, on the point. [1759]. https://collections.library.yale.edu/catalog/33208695.

APA, 6th edition

Portsmouth Theatre (Portsmouth, England). ([1759])[At the theatre in Portsmouth, this present Friday, being the 24th of August, will be presented a tragedy, call'd, Macbeth ... to which will be added Gasconado the great ... tickets to be had at the Fountain ... and Two Blue Posts, on the point]. https://collections.library.yale.edu/catalog/33208695.