Hayden, F... Preliminary report of the United States geological survey of Montana and portions of adjacent territories : Being a 5 annual report of progress / By F. V. Hayden , conducted under authority of the secretary of the Interior; F... Hayden .— : Government printing office, 1872 .— 605 с. — Lang: eng .— URL: https://rucont.ru/efd/116963 (дата обращения: 13.11.2025)