MLA

Owen Farrel, the Irish Dwarf 3 Feet, 9 Inches High : from an Original Painting in the Possession of the Publisher. [Graphic]. Published April 4th, 1815, by R.S. Kirby, 11 London House Yard, St. Paul's, 0AD. https://collections.library.yale.edu/catalog/16832888.

APA, 6th edition

Owen Farrel, the Irish dwarf 3 feet, 9 inches high : from an original painting in the possession of the publisher. [graphic]. (0 C.E.). [Portrait prints, Periodical illustrations, Etchings England London 1815, Crayon manner prints England London 1815]. Published April 4th, 1815, by R.S. Kirby, 11 London House Yard, St. Paul's. https://collections.library.yale.edu/catalog/16832888.