Cite

Signor Gruntinelli playing on a new instrument (call'd a swinetta). [graphic]

MLA

Signor Gruntinelli Playing on a New Instrument (Call'd a Swinetta). [Graphic]. Pubd. accorg. to act Jany. 1, 1774, by MDarly, 39 Strand, 0AD. https://collections.library.yale.edu/catalog/16737600.

APA, 6th edition

Signor Gruntinelli playing on a new instrument (call'd a swinetta). [graphic]. (0 C.E.). [Satires (Visual works) England 1774, Etchings England London 1774]. Pubd. accorg. to act Jany. 1, 1774, by MDarly, 39 Strand. https://collections.library.yale.edu/catalog/16737600.