TY  - BOOK
AU  - Rees,Orin Wainwright
AU  - Selvig,W.A.
ED  - United States.
TI  - Determination of ash in coals unusually high in calcite and pyrite,
T2  - Illinois.  State geological survey.  Report of investigations
AV  - TP325 .R39
U1  - 662/.6 
PY  - 1942///
CY  - Urbana, Ill.
KW  - Coal
KW  - Analysis
N1  - At head of title: State of Illinois, Dwight H. Green, governor.  Dept. of registration and education, Frank G. Thompson, director.  Division of the State geological survey, M.M. Leighton, chief, Urbana; "Reprinted from Industrial and engineering chemistry, analytical edition, vol. 14, no. 3, March 15, 1942."; "Literature cited": p. 10
ER  -