TY  - BOOK
AU  - Pearson,Robert Carl
ED  - United States Geological Survey
TI  - Cambrian(?), Middle Proterozoic, and Archean rocks penetrated in a borehole near Argenta, Beaverhead County, Montana, and some paleogeographic and structural implications
AV  - QE75QE627.5.M9 .B9 no. 2121-B
PY  - 1996///
CY  - Washington, D.C.
PB  - U.S. Government Printing Office.
N1  - Includes bibliographical references (p. 14-15)
ER  -