Cite

Map of the city and county of San Francisco / Dept. of Public Works, Bureau of Engineering ; Ralph G. Wadsworth, City Engineer.

MLA

San Francisco (Calif.). Bureau of Engineering. Map of the city and county of San Francisco / Dept. of Public Works, Bureau of Engineering ; Ralph G. Wadsworth, City Engineer.. BRBL_00610. 1948. https://collections.library.yale.edu/catalog/15818769.

APA, 6th edition

San Francisco (Calif.). Bureau of Engineering. (["BRBL_00610"])(1948)[Map of the city and county of San Francisco / Dept. of Public Works, Bureau of Engineering ; Ralph G. Wadsworth, City Engineer.]. https://collections.library.yale.edu/catalog/15818769.