Cite

Bacon's new map of London : divided into half mile squares & circles.

MLA

Bacon, G. W., and Co. Bacon's New Map of London : Divided into Half Mile Squares & Circles. G.W. Bacon & Co., 0AD. https://collections.library.yale.edu/catalog/15286750.

APA, 6th edition

Bacon, G. W., & C. (0 C.E.). Bacon's new map of London : divided into half mile squares & circles. [Maps]. G.W. Bacon & Co., https://collections.library.yale.edu/catalog/15286750.