TY  - BOOK
AU  - Combo,John Xavier
TI  - Coal resources of Montana,
AV  - QE75 .C5 no. 53
PY  - 1949///
CY  - Washington
KW  - Coal
KW  - Montana
KW  - Coal mines and mining
N1  - Cover title; "Selected bibliography": p. 24-26
ER  -