TY  - BOOK
AU  - Dyni,John R.
AU  - Gaskill,David L.
ED  - United States
TI  - Relation of the carbon/oxygen ratio in coal to igneous intrusions in the Somerset coal field, Colorado
T2  - Contributions to geochemistry
U1  - 662.622978841 
PY  - 1980///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Coal
KW  - Colorado
KW  - Analysis
N1  - Bibliography : p. 18-20
ER  -