On Tuesday evening, April 1st, 1800, will be presented the dramatic opera of Zorinski; or, King of Poland ... : to which will be added, not acted here these nine years, a farce, in two acts, called Who's the dupe? ...
MLA
On Tuesday Evening, April 1st, 1800, Will Be Presented the Dramatic Opera of Zorinski; or, King of Poland ... : to Which Will Be Added, Not Acted Here These Nine Years, a Farce, in Two Acts, Called Who's the Dupe? ... Printed by W. Blanchard, 0AD. https://collections.library.yale.edu/catalog/33208065.
APA, 6th edition
On Tuesday evening, April 1st, 1800, will be presented the dramatic opera of Zorinski; or, King of Poland ... : to which will be added, not acted here these nine years, a farce, in two acts, called Who's the dupe? ... (0 C.E.). [Playbills, Broadsides]. Printed by W. Blanchard. https://collections.library.yale.edu/catalog/33208065.