TY  - BOOK
T1  - Relation of the carbon/oxygen ratio in coal to igneous intrusions in the Somerset coal field, Colorado /
DA  - 1980.
CY  - Washington :
AU  - Dyni, John R.
CN  - QE75
CN  - QE75
CN  - TP326.U6
PB  - U.S. Govt. Print. Off.,
PP  - Washington :
PY  - 1980.
ID  - 19217
KW  - Coal
TI  - Relation of the carbon/oxygen ratio in coal to igneous intrusions in the Somerset coal field, Colorado /
ER  -