Cite

December 19-21, 1803 and map of the junction of the Ohio and Mississippi rivers

MLA

Clark, William, 1770-1838. December 19-21, 1803 and map of the junction of the Ohio and Mississippi rivers. Box 1, folder 2. 1803-1805. https://collections.library.yale.edu/catalog/2002877.

APA, 6th edition

Clark, William, 1770-1838. (["Box 1, folder 2"])(1803-1805)[December 19-21, 1803 and map of the junction of the Ohio and Mississippi rivers]. https://collections.library.yale.edu/catalog/2002877.