Cite

Area of the mouth of the Columbia River, southern side

MLA

Clark, William, 1770-1838. Area of the mouth of the Columbia River, southern side. Box 2, folder 48. circa 1803-1810. https://collections.library.yale.edu/catalog/2002496.

APA, 6th edition

Clark, William, 1770-1838. (["Box 2, folder 48"])(circa 1803-1810)[Area of the mouth of the Columbia River, southern side]. https://collections.library.yale.edu/catalog/2002496.