MLA

An Hieroglyphic Epistle from a [Sailor ] on Board a [Ship] [to] His Sweet [Heart] [Graphic]. Printed 21st October 1799, by Laurie & Whittle, No. 53 Fleet Street, London, 0AD. https://collections.library.yale.edu/catalog/10952733.

APA, 6th edition

An hieroglyphic epistle from a [sailor ] on board a [ship] [to] his sweet [heart] [graphic]. (0 C.E.). [Satires (Visual works) England 1799, Etchings England London 1799, Rebuses, Watermarks (Paper) JM.]. Printed 21st October 1799, by Laurie & Whittle, No. 53 Fleet Street, London. https://collections.library.yale.edu/catalog/10952733.