Map showing lines of the Bell telephone companies in the United States and Canada : July 1st, 1904 / American Telephone & Telegraph Company.
MLA
Telephone, American, and Telegraph Company. Map Showing Lines of the Bell Telephone Companies in the United States and Canada : July 1st, 1904 / American Telephone & Telegraph Company. The Company, 1904. https://collections.library.yale.edu/catalog/15827795.
APA, 6th edition
Telephone, A., & Company, T. (1904). Map showing lines of the Bell telephone companies in the United States and Canada : July 1st, 1904 / American Telephone & Telegraph Company. [Maps]. The Company, https://collections.library.yale.edu/catalog/15827795.
