South America. Drawn & Engraved by J. Dower.
MLA
South America. Drawn & Engraved by J. Dower. William Orr, 1840. https://collections.library.yale.edu/catalog/15821016.
APA, 6th edition
South America. Drawn & Engraved by J. Dower. (1840). [Maps]. William Orr, https://collections.library.yale.edu/catalog/15821016.