Cite

Plan of the River Oregan, from an actual survey.

MLA

Broughton, William Robert, 1762-1821. Plan of the River Oregan, from an actual survey.. BRBL_00622. 1st. Novr. 1798.. https://collections.library.yale.edu/catalog/15821586.

APA, 6th edition

Broughton, William Robert, 1762-1821. (["BRBL_00622"])(1st. Novr. 1798.)[Plan of the River Oregan, from an actual survey.]. https://collections.library.yale.edu/catalog/15821586.