Cite

Map of the New York Wilderness and the Adirondacks.

MLA

Ely, William Watson. Map of the New York Wilderness and the Adirondacks. G.W & C.B. Colton, 1878. https://collections.library.yale.edu/catalog/15753349.

APA, 6th edition

Ely, W. W. (1878). Map of the New York Wilderness and the Adirondacks. [Maps]. G.W & C.B. Colton, https://collections.library.yale.edu/catalog/15753349.