Cite

Gray's and Torry's Peaks.

MLA

Ingersoll, Ernest, 1852-1946, Jackson, William Henry, 1843-1942. Gray's and Torry's Peaks.. https://collections.library.yale.edu/catalog/2018670.

APA, 6th edition

Ingersoll, Ernest, 1852-1946, & Jackson, William Henry, 1843-1942. [Gray's and Torry's Peaks.]. https://collections.library.yale.edu/catalog/2018670.