TY  - BOOK
AU  - Pratt,Walden P.
AU  - Sims,P.K.
ED  - United States
TI  - The midcontinent of the United States: permissive terrane for an Olympic-Dam type deposit? / 
U1  - 553.0973 20th ed.
PY  - 1990///].
CY  - [Washington]: 
PB  - [United States Government Printing Office], 
KW  - Ore deposits
KW  - Congresses
KW  - Middle West
KW  - Strategic materials
N1  - Midcontinent Strategic and Critical Minerals Project 1988 Workshop report; Includes bibliographical references
ER  -