MLA

Twentieth Century Boston : the Best City in the United States to Live in, to Do Business in and to Visit. Published by the City of Boston Publicity and Information Bureau ..., 0AD. https://collections.library.yale.edu/catalog/15827433.

APA, 6th edition

Twentieth century Boston : the best city in the United States to live in, to do business in and to visit. (0 C.E.). [Pictorial maps--Massachussetts--Boston--1907]. Published by the City of Boston Publicity and Information Bureau ..., https://collections.library.yale.edu/catalog/15827433.