Cite

Coastline south of the mouth of the Columbia River

MLA

Clark, William, 1770-1838, Lewis, Meriwether, 1774-180. Coastline south of the mouth of the Columbia River. Box 2 | Folder 49. undated. https://collections.library.yale.edu/catalog/2002497.

APA, 6th edition

Clark, William, 1770-1838, & Lewis, Meriwether, 1774-180. (["Box 2 | Folder 49"])(undated)[Coastline south of the mouth of the Columbia River]. https://collections.library.yale.edu/catalog/2002497.