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 "Leavy, J. B.","Catalogue of the postage stamps ans stamped envelopes of the United States and possessions, issued prior to january 1, 1919",,Government Printing Office,1919,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282272003092352