MLA

Principal Characters in the New Play of The Road to Royalty! [Graphic]. Printed and published by T. Rockliffe, 65 Ratcliff Highway, 0AD. https://collections.library.yale.edu/catalog/16819403.

APA, 6th edition

Principal characters in the new play of The road to royalty! [graphic]. (0 C.E.). [Caricatures and cartoons, Broadsides England 19th century, Satires (Visual works) England 1829, Wood engravings England London 1829]. Printed and published by T. Rockliffe, 65 Ratcliff Highway. https://collections.library.yale.edu/catalog/16819403.