Desirable characteristics of a state-wide evaluation of coal resources
Treworgy, C. G
Desirable characteristics of a state-wide evaluation of coal resources
bibliogr. p. 577
00167606
Charbon
Coal measures
Evaluation gîte
Etude faisabilité
Gisement potentiel
Etats Unis
Desirable characteristics of a state-wide evaluation of coal resources
bibliogr. p. 577
00167606
Charbon
Coal measures
Evaluation gîte
Etude faisabilité
Gisement potentiel
Etats Unis

