[Queen's head, within floral cartouche] [graphic]
MLA
Gretton, H., active 1757, printmaker. [Queen's head, within floral cartouche] [graphic]. [approximately 1757]. https://collections.library.yale.edu/catalog/16830932.
APA, 6th edition
Gretton, H., active 1757, printmaker. ([approximately 1757])[[Queen's head, within floral cartouche] [graphic]]. https://collections.library.yale.edu/catalog/16830932.