TY  - SER
AU  - Forsman,Nels
AU  - Hostermann,John
AU  - Roen,John
TI  - Misuse of the term "bentonite" for ash beds of Devonian age in teh Appalachian basin; discussion and reply
SN  - 00167606
KW  - Bentonite
KW  - Etude critique
KW  - Nomenclature
KW  - Shale noir
KW  - Etats Unis
KW  - Bassin Appallachien
ER  -