COAL RESOURCES OF ILLINOIS.PALMER JE; TREWORGY CG.1978; AMER. ASS. PETROLEUM GEOLOGISTS BULL.; U.S.A.; DA. 1978; VOL. 62; NO 3; PP. 552-553; (1978 AAPG-SEPM ANNU. CONV. PROGRAM. ABSTR.; OKLAHOMA CITY; 1978)Conference Paper

COMPUTER ANALYSIS OF COAL RESOURCE DATA.MILLER WG; BENGAL LE; TREWORGY CG et al.1976; GEOL. SOC. AMER., ABSTR. PROGRAMS; U.S.A.; DA. 1976; VOL. 8; NO 6; PP. 1012Conference Paper

RESERVES AND RESOURCES OF SURFACE-MINABLE COAL IN ILLINOISTREWORGY CG; BENGAL LE; DINGWELL AG et al.1978; ILLINOIS STATE GEOL. SURV., CIRC.; USA; DA. 1978; NO 504; 48 P.; BIBL. 24 REF.; 12 ILL.Serial Issue

SOFT-SEDIMENT DEFORMATION IN THE PENNSYLVANIAN STRATA OF SOUTHERN ILLINOIS.HUNT SR; NELSON WJ; TREWORGY CG et al.1976; GEOL. SOC. AMER., ABSTR. PROGRAMS; U.S.A.; DA. 1976; VOL. 8; NO 3; PP. 932-933Conference Paper

DESIRABLE CHARACTERISTICS OF A STATE-WIDE EVALUATION OF COAL RESOURCES = LES CARACTERISTIQUES SOUHAITABLES D'UNE EVALUATION PAR ETAT DES RESSOURCES EN CHARBONTREWORGY CG; DAMBERGER HH; PALMER JE et al.1981; GEOL. SOC. AM. BULL.; ISSN 0016-7606; USA; DA. 1981-08; VOL. 92; NO 8; PP. I 574-I 577; BIBL. 6 REF.; ILL.Article

THE ABUNDANCE OF ZINC AND CADMIUM IN SPHALERITE-BEARING COALS IN ILLINOISCOBB JC; STEELE JD; TREWORGY CG et al.1980; ILLINOIS STATE GEOL. SURV., ILLINOIS MINER. NOTE; USA; DA. 1980; NO 74; 28 P.; BIBL. 1 P.; 24 ILL.Serial Issue

ROOF STRATA OF THE HERRIN (NO 6) COAL MEMBER IN MINES OF ILLINOIS: THEIR GEOLOGY AND STABILITY. SUMMARY REPORTKRAUSSE HF; DAMBERGER HH; NELSON WJ et al.1979; ILLINOIS STATE GEOL. SURV., ILLINOIS MINER. NOTE; USA; DA. 1979; NO 72; 54 P.; BIBL. 1 P.; 49 ILL.Serial Issue