MLA

Portsmouth Theatre (Portsmouth, England). At the New Theatre in Portsmouth, this present Tuesday, being the 28th of July, will be presented a comedy, call'd The pilgrim ... : to which will be added a farce, call'd, The author ... tickets to be had at the Fountain ... and at the India Arms in Gosport. [1761]. https://collections.library.yale.edu/catalog/33208817.

APA, 6th edition

Portsmouth Theatre (Portsmouth, England). ([1761])[At the New Theatre in Portsmouth, this present Tuesday, being the 28th of July, will be presented a comedy, call'd The pilgrim ... : to which will be added a farce, call'd, The author ... tickets to be had at the Fountain ... and at the India Arms in Gosport]. https://collections.library.yale.edu/catalog/33208817.