Route about October 11-13, 1805, and return camps for May 3 and 4, 1806
MLA
Clark, William, 1770-1838, Lewis, Meriwether, 1774-180. Route about October 11-13, 1805, and return camps for May 3 and 4, 1806. Box 2 | Folder 37. undated. https://collections.library.yale.edu/catalog/2002485.
APA, 6th edition
Clark, William, 1770-1838, & Lewis, Meriwether, 1774-180. (["Box 2 | Folder 37"])(undated)[Route about October 11-13, 1805, and return camps for May 3 and 4, 1806]. https://collections.library.yale.edu/catalog/2002485.