MLA

McClintock, Walter, 1870-1949. Forestry Expedition to the Rocky Mountains of Montana, and the Seward Webb Estate, Adirondack Mountains. Box 32. 1896-1897. https://collections.library.yale.edu/catalog/2020025.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 32"])(1896-1897)[Forestry Expedition to the Rocky Mountains of Montana, and the Seward Webb Estate, Adirondack Mountains]. https://collections.library.yale.edu/catalog/2020025.