[Map showing disputed boundary between U.S. and Canada] Printed at the lithographic Establishment Quarter Master General's Office Horse Guards. Drawn by L. Herbert.
MLA
[Map Showing Disputed Boundary between U.S. and Canada] Printed at the Lithographic Establishment Quarter Master General's Office Horse Guards. Drawn by L. Herbert. 0AD. https://collections.library.yale.edu/catalog/15604161.
APA, 6th edition
[Map showing disputed boundary between U.S. and Canada] Printed at the lithographic Establishment Quarter Master General's Office Horse Guards. Drawn by L. Herbert. (0 C.E.). [Maps]. https://collections.library.yale.edu/catalog/15604161.
