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
Drewry Shipping Consultants,"VLCC/ULCC employment, costs and revenues",,H.P. Drewry (Shipping Consultants),1979,An Economic study,,,,https://cir.nii.ac.jp/crid/1130282271831984640