TY  - SER
AU  - Treworgy,C.G
AU  - Damberger,H.H
AU  - Palmer,J.E
ED  - Coal geology symposium: The evaluation of North American coal resources
TI  - Desirable characteristics of a state-wide evaluation of coal resources
SN  - 00167606
KW  - Charbon
KW  - Coal measures
KW  - Evaluation gîte
KW  - Etude faisabilité
KW  - Gisement potentiel
KW  - Etats Unis
N1  - <Donation ORSTOM>; bibliogr. p. 577
ER  -