MLA

Map of the City of Kirkwood : Beautiful Kirkwood / Compliments of Benjamin F. Thomas, Real Estate. Fred Graf Engraving Co., 0AD. https://collections.library.yale.edu/catalog/15827836.

APA, 6th edition

Map of the city of Kirkwood : beautiful Kirkwood / compliments of Benjamin F. Thomas, real estate. (0 C.E.). [Maps]. Fred Graf Engraving Co., https://collections.library.yale.edu/catalog/15827836.