Deutsch, H. J. (1962). Surveying the 49th parallel, 1858-61: United States-Canada boundary in the Pacific Northwest. Washington State Historical Society.
Cita Chicago Style (17a ed.)Deutsch, Herman J. Surveying the 49th Parallel, 1858-61: United States-Canada Boundary in the Pacific Northwest. Tacoma: Washington State Historical Society, 1962.
Cita MLA (8a ed.)Deutsch, Herman J. Surveying the 49th Parallel, 1858-61: United States-Canada Boundary in the Pacific Northwest. Washington State Historical Society, 1962.
Precaución: Estas citas no son 100% exactas.