Barnett, Paul R.
Spectrographic analysis for selected minor elements in Pierre Shale / by Paul R. Barnett. -- Washington : United States Government Printing Office, 1961 - 10 p. -- (Geological Survey Professional Paper ; 391-B).
Geoquímica
550.4
Spectrographic analysis for selected minor elements in Pierre Shale / by Paul R. Barnett. -- Washington : United States Government Printing Office, 1961 - 10 p. -- (Geological Survey Professional Paper ; 391-B).
Geoquímica
550.4