Cite

D. 247. Castle Geyser, Fire Hole River, Upper Basin

MLA

Watkins, Carleton E., 1829-1916. D. 247. Castle Geyser, Fire Hole River, Upper Basin. Folder 39. undated. https://collections.library.yale.edu/catalog/2017497.

APA, 6th edition

Watkins, Carleton E., 1829-1916. (["Folder 39"])(undated)[D. 247. Castle Geyser, Fire Hole River, Upper Basin]. https://collections.library.yale.edu/catalog/2017497.