TY  - BOOK
AU  - Penkal,Russell F.
ED  - United Stares.
TI  - Environmental effects of western coal surface mining
U1  - 333.714 
PY  - 1980///
CY  - Minnesota
PB  - U.S. E.P.A
KW  - Impact studies
KW  - Technology assessment
KW  - Natural resources impact
KW  - Coal mine
N1  - EPA-600/3-80-045; pt.6 : Smallmouth bass and largemouth bass in the  Tongue river reservoir, Montana, 1975-76
ER  -