MLA

Portsmouth Theatre (Portsmouth, England). At the theatre in Portsmouth, this present Monday, being the 23d of July, will be presented a tragedy, call'd, Hamlet, prince of Denmark ... : to which will be added a musical entertainment, call'd The chaplet ... tickets to be had at the Fountain ... and Two Blue Posts, on the point. [1759]. https://collections.library.yale.edu/catalog/33208663.

APA, 6th edition

Portsmouth Theatre (Portsmouth, England). ([1759])[At the theatre in Portsmouth, this present Monday, being the 23d of July, will be presented a tragedy, call'd, Hamlet, prince of Denmark ... : to which will be added a musical entertainment, call'd The chaplet ... tickets to be had at the Fountain ... and Two Blue Posts, on the point]. https://collections.library.yale.edu/catalog/33208663.