Cite

[Map of the Louisiana Territory]

MLA

Lewis, Samuel, 1753 or 4-1822. [Map of the Louisiana Territory]. https://collections.library.yale.edu/catalog/2057061.

APA, 6th edition

Lewis, Samuel, 1753 or 4-1822. [[Map of the Louisiana Territory]]. https://collections.library.yale.edu/catalog/2057061.