Browne, J.R. Letter from the Secretary of the Treasury : transmitting the report of J. Ross Browne on the mineral resources of the states and territories West of the Rocky mountains : March 5, 1868 / J.R. Browne .— : 1868, 1868 .— 673 с. — Lang: eng .— URL: https://rucont.ru/efd/108230 (дата обращения: 02.12.2025)