Vista normal Vista MARC Vista ISBD

Hancock, E T.

United States Geological Survey Bulletin ; no.716-C - Washington-US : United States Geological Survey Bulletin, 1918. - páginas 35-53 : IIustraciones blanco y negro - No. 716-C (1920) - United States Geological Survey Bulletin ; no.716-C . - United States Geological Survey. .