Wherry, Edgar T.
Carnotite near Mauch Chunk Pennsylvania. - Washington-US : United States Geological Survey Bulletin, 1914. - páginas 147-151 : IIustraciones blanco y negro - No. 580-H (1914) - United States Geological Survey Bulletin ; no.580-H . - United States Geological Survey. .
Carnotite near Mauch Chunk Pennsylvania. - Washington-US : United States Geological Survey Bulletin, 1914. - páginas 147-151 : IIustraciones blanco y negro - No. 580-H (1914) - United States Geological Survey Bulletin ; no.580-H . - United States Geological Survey. .