TY  - SER
AU  - Wood,Gordon Jr
ED  - Coal geology symposium: The evaluation of North American coal resources
TI  - Historical review of and current progress in coal-resource estimation in the United States
SN  - 00167606
KW  - Coal measures
KW  - Bassin Hoilleur
KW  - Couche charbon
KW  - Degré houllification
KW  - Anthracite
KW  - Lignite
KW  - Charbon bitumineaux
KW  - Réserve
KW  - Etats Unis
N1  - <Donation ORSTOM>; bibliogr. p. 528
ER  -