著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "United States. Air Force and Crowley, Francis A.",Gravity observations along the northern coast of Ellesmere Island,,United States. Air Force,1961,GRD research notes,,,,https://cir.nii.ac.jp/crid/1130000795077856256