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 Nations,Extension and renovation of the electrical distribution system of Phnom-Penh,,University Microfilms International,1987,U.M.I. out-of-print books on demand,,,,https://cir.nii.ac.jp/crid/1130566853331862016