Geologic studies in Alaska by the US Geological Survey : 1999 / ed. by Larry P. Gough [a. o.] ; United States Geological Survey. - Denver : U. S. Geological Survey, 2001. - v, 142 p. : ill. - U. S. Geological Survey professional paper ; 1633 . Includes bibliographies. Subjects--Index Terms: გეოლოგია ამერიკის გეოლოგია Universal Decimal Class. No.: 55(73)