Cite

A map of Lewis and Clark's track, across the western portion of North America fom the Mississippi to the Pacific Ocean; by order of the Executive of the United States . In 1804, 5 & 6

MLA

Clark, William, 1770-1838, Lewis, Samuel, 1753 or 4-1822. A map of Lewis and Clark's track, across the western portion of North America fom the Mississippi to the Pacific Ocean; by order of the Executive of the United States . In 1804, 5 & 6. [ca. 1814]. https://collections.library.yale.edu/catalog/2020701.

APA, 6th edition

Clark, William, 1770-1838, & Lewis, Samuel, 1753 or 4-1822. ([ca. 1814])[A map of Lewis and Clark's track, across the western portion of North America fom the Mississippi to the Pacific Ocean; by order of the Executive of the United States . In 1804, 5 & 6]. https://collections.library.yale.edu/catalog/2020701.