Map and Guide of the New York State Reservation at Niagara.
MLA
Map and Guide of the New York State Reservation at Niagara. [Commissioners of New York State Reservation, 1893. https://collections.library.yale.edu/catalog/15761172.
APA, 6th edition
Map and Guide of the New York State Reservation at Niagara. (1893). [Maps]. [Commissioners of New York State Reservation, https://collections.library.yale.edu/catalog/15761172.