TY  - BOOK
AU  - Schultz,Leonard G.
TI  - Quantitative interpretation of mineralogical composition from x ray and chemical data for the pierre shale
T2  - Geological Survey professional paper
U1  - 551.78 
PY  - 1964///
CY  - Washington
PB  - United States Government Printing Office
KW  - Geology, Stratigraphic
N1  - Bibliography: p. 46-47
ER  -