MLA

Jonson, Ben, 1573?-1637. The alchymist : a comedy : first acted in the year 1610, by the King’s Majesty’s servants : with allowance of the Master of revels / the author, B.J. .... [1680?]. https://collections.library.yale.edu/catalog/2057390.

APA, 6th edition

Jonson, Ben, 1573?-1637. ([1680?])[The alchymist : a comedy : first acted in the year 1610, by the King’s Majesty’s servants : with allowance of the Master of revels / the author, B.J. ...]. https://collections.library.yale.edu/catalog/2057390.