Cite

The Roaring Fork, below Aspen

MLA

Ingersoll, Ernest, 1852-1946, Jackson, William Henry, 1843-1942. The Roaring Fork, below Aspen. https://collections.library.yale.edu/catalog/2018691.

APA, 6th edition

Ingersoll, Ernest, 1852-1946, & Jackson, William Henry, 1843-1942. [The Roaring Fork, below Aspen]. https://collections.library.yale.edu/catalog/2018691.