MLA

Harris, John, active 1680-1739 or 1740, printmaker. The south-west prospect of His Grace [the] Duke of Marlboroughs House in St. James Park [graphic]. [approximately 1715]. https://collections.library.yale.edu/catalog/10996692.

APA, 6th edition

Harris, John, active 1680-1739 or 1740, printmaker. ([approximately 1715])[The south-west prospect of His Grace [the] Duke of Marlboroughs House in St. James Park [graphic]]. https://collections.library.yale.edu/catalog/10996692.