nkysdb: なかよし論文データベース
SHROBA Ralph R. 様の 共著関連データベース
+(A list of literatures under single or joint authorship with "SHROBA Ralph R.")
共著回数と共著者名 (a list of the joint author(s))
発行年とタイトル (Title and year of the issue(s))
1996: Surficial Geologic Map of the Rocky Flats Environmental Technology Site and Vicinity, Jefferson and Boulder Counties, Colorado
2001: Geologic Map of the Silt Quadrange, Garfield County, Colorado 1:24, 000