Cite

Chart of the N W coast of Asia explored in the years 1778 & 1779 ... Writing engraved by T. Harmar.

MLA

Chart of the N W Coast of Asia Explored in the Years 1778 & 1779 ... Writing Engraved by T. Harmar. 1780. https://collections.library.yale.edu/catalog/15235137.

APA, 6th edition

Chart of the N W coast of Asia explored in the years 1778 & 1779 ... Writing engraved by T. Harmar. (1780). [Maps]. https://collections.library.yale.edu/catalog/15235137.