nkysdb: なかよし論文データベース
U.S. Army Corps of Engineers 様の 共著関連データベース
+(A list of literatures under single or joint authorship with "U.S. Army Corps of Engineers")
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))
1976: Topographic Map of Wicomico County