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 "Putnam, Bertha Haven","The enforcement of the statutes of labourers during the first decade after the Black Death, 1349-1359",,"Columbia University,Longmans, Green : P.S. King",1908,"Studies in history, economics and public law",,,,https://cir.nii.ac.jp/crid/1130282272408963712