Cite

1009. Marshall Pass and Mt. Ouray

MLA

Jackson, William Henry, 1843-1942. 1009. Marshall Pass and Mt. Ouray. Box 1. ca. 1879-1894. https://collections.library.yale.edu/catalog/2004805.

APA, 6th edition

Jackson, William Henry, 1843-1942. (["Box 1"])(ca. 1879-1894)[1009. Marshall Pass and Mt. Ouray]. https://collections.library.yale.edu/catalog/2004805.