Map of the city of Milwaukee / drawn after original surveys of prominent city engineers for William Hogg, city directory publisher.
MLA
Murphy & Hogg (Firm). Map of the city of Milwaukee / drawn after original surveys of prominent city engineers for William Hogg, city directory publisher.. BRBL_00555A. 1880. https://collections.library.yale.edu/catalog/15814544.
APA, 6th edition
Murphy & Hogg (Firm). (["BRBL_00555A"])(1880)[Map of the city of Milwaukee / drawn after original surveys of prominent city engineers for William Hogg, city directory publisher.]. https://collections.library.yale.edu/catalog/15814544.