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Publié 1918
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par Larrison, Earl J. (Earl Junior), 1919-1987
Publié 1981 -
par Pollock, Adelaide Lowry
Publié 1925 -
Report of the Geological exploration of the fortieth parallel made by order of the Secretary of War according to the acts of Congress of March 2 1867 and March 3 1869under the direction of A A Humphreys chief of engineersConference Proceeding BookPublié 1870