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
"Ravenstein, Ernest George","A journal of the first voyage of Vasco da Gama, 1497-1499",,Printed for the Hakluyt Society,1898,Works,,,,https://cir.nii.ac.jp/crid/1130282268759690368