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
"Kennington, Donald and Pratt, Gordon",Public libraries and long range planning : an exercise in Delphi technique forecasting carried out on behalf of PLRG in 1973-1974,,Public Libraries Research Group,1976,PLRG occasional paper,,0950380113,,https://cir.nii.ac.jp/crid/1130000793890497536