MLA

Sandys Monument [Graphic]. Published according to act of Parliament by Rich'd Bigland, 0AD. https://collections.library.yale.edu/catalog/16194611.

APA, 6th edition

Sandys monument [graphic]. (0 C.E.). [Engravings England London 1788]. Published according to act of Parliament by Rich'd Bigland. https://collections.library.yale.edu/catalog/16194611.