TY  - BOOK
AU  - Averitt,Paul
TI  - Coal resources of the United States, January 1, 1967
T2  - Geological Survey bulletin 1275
AV  - QE75 .B9 no. 1275
U1  - 553/.2/0973 
PY  - 1969///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Coal
KW  - United States
N1  - "Supersedes Bulletin 1136."; Bibliography: p. 101-112
ER  -