Cite

Route about October 15-20, 1805, and return camps April 27-30, 1806

MLA

Clark, William, 1770-1838. Route about October 15-20, 1805, and return camps April 27-30, 1806. Box 2, folder 39. circa 1803-1810. https://collections.library.yale.edu/catalog/2002487.

APA, 6th edition

Clark, William, 1770-1838. (["Box 2, folder 39"])(circa 1803-1810)[Route about October 15-20, 1805, and return camps April 27-30, 1806]. https://collections.library.yale.edu/catalog/2002487.