Joint maps of the international boundary between United States and Canada from Cape Muzon to Mount St. Elias.
MLA
Commission, International Boundary. Joint Maps of the International Boundary between United States and Canada from Cape Muzon to Mount St. Elias. U.S. G.P.O., 1952. https://collections.library.yale.edu/catalog/15821783.
APA, 6th edition
Commission, I. B. (1952). Joint maps of the international boundary between United States and Canada from Cape Muzon to Mount St. Elias. [Topographic maps]. U.S. G.P.O., https://collections.library.yale.edu/catalog/15821783.