MLA

View of the Building in Cato Street, Where the Conspirators Were Discovered and Arrested on the Evening of the 23rd Feb.y 1820 : and an Accurate Plan of the District, Shewing the Exact Situation. Published by J. Heskett, 13 Sweetings Alley, Royal Exchange, March 2d, 1820 by C. Chapple, Pall Mall, and J. Bolton, No. 10 Merlin's Place, Spa Fields, London, 0AD. https://collections.library.yale.edu/catalog/33300083.

APA, 6th edition

View of the building in Cato Street, where the conspirators were discovered and arrested on the evening of the 23rd Feb.y 1820 : and an accurate plan of the district, shewing the exact situation. (0 C.E.). [Lithographs]. Published by J. Heskett, 13 Sweetings Alley, Royal Exchange, March 2d, 1820 by C. Chapple, Pall Mall, and J. Bolton, No. 10 Merlin's Place, Spa Fields, London. https://collections.library.yale.edu/catalog/33300083.