nkysdb: なかよし論文データベース
GRUBER James R. 様の 共著関連データベース
+(A list of literatures under single or joint authorship with "GRUBER James R.")
共著回数と共著者名 (a list of the joint author(s))
2: GRUBER James R., Jr.
発行年とタイトル (Title and year of the issue(s))
1986: Coal Development Potential of the Northwest Scobey Area, Daniels and Valley Counties, Montana
1990: Coal Geology and Resources of the Kirby Quadrangle, Big Horn County, Montana